Guy's Magnets 10 mm x 3.5 mm x 2.4 mm PN10 bonded neodymium block

Length: 10 mm (0.39") Width: 3.5 mm (0.13") Thickness: 2.4 mm (0.09") Axially Magnetised through the thickness so that one 10x3.5mm face is north, the other is south Weight: 0.504g Grade: NB10 (Bonded Neodymium) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 0.62lb / 9.9oz / 280g Calculated Max Vertical Hold-guidance only: 0.12lb / 1.9oz / 56g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter.

Guy's Budget Range 12 mm x 4 mm x 4 mm N38 grade block - PACK OF 50

Technical Specifications These are from our BUDGET RANGE of magnets, ideal for the budget conscious when the tolerances are less important than normal.  Instead of our usual +/-0.1mm tolerances, they have +/-5% tolerances on any dimension. Length: 12 mm (0.47") Width: 4 mm (0.15") Thickness: 4 mm (0.15") Axially Magnetised through the thickness so that one 12x4mm face is north, the other is south Weight: 1.42g Grade: N38 Coating: Ni-Cu-Ni (Nickel-Copper-Nickel) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 4.2lb / 67oz / 1910g Calculated Max Vertical Hold-guidance only: 0.84lb / 13.4oz / 382g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter. Thin neodymium magnets DO NOT FLEX, if you attempt to flex them they will snap in half.

Guy's Budget Range 12 mm x 4 mm x 4 mm N38 grade block - PACK OF 25

Technical Specifications These are from our BUDGET RANGE of magnets, ideal for the budget conscious when the tolerances are less important than normal.  Instead of our usual +/-0.1mm tolerances, they have +/-5% tolerances on any dimension. Length: 12 mm (0.47") Width: 4 mm (0.15") Thickness: 4 mm (0.15") Axially Magnetised through the thickness so that one 12x4mm face is north, the other is south Weight: 1.42g Grade: N38 Coating: Ni-Cu-Ni (Nickel-Copper-Nickel) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 4.2lb / 67oz / 1910g Calculated Max Vertical Hold-guidance only: 0.84lb / 13.4oz / 382g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter. Thin neodymium magnets DO NOT FLEX, if you attempt to flex them they will snap in half.

Guy's Budget Range 12 mm x 4 mm x 4 mm N38 grade block - PACK OF 10

Technical Specifications These are from our BUDGET RANGE of magnets, ideal for the budget conscious when the tolerances are less important than normal.  Instead of our usual +/-0.1mm tolerances, they have +/-5% tolerances on any dimension. Length: 12 mm (0.47") Width: 4 mm (0.15") Thickness: 4 mm (0.15") Axially Magnetised through the thickness so that one 12x4mm face is north, the other is south Weight: 1.42g Grade: N38 Coating: Ni-Cu-Ni (Nickel-Copper-Nickel) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 4.2lb / 67oz / 1910g Calculated Max Vertical Hold-guidance only: 0.84lb / 13.4oz / 382g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter. Thin neodymium magnets DO NOT FLEX, if you attempt to flex them they will snap in half.

Guy's Budget Range 25 mm x 4 mm x 4 mm N38 grade block - PACK OF 25

Technical Specifications These are from our BUDGET RANGE of magnets, ideal for the budget conscious when the tolerances are less important than normal.  Instead of our usual +/-0.1mm tolerances, they have +/-5% tolerances on any dimension. These are ideal for some Scalextric and some slot cars. Please note that several different sizes of magnets are used in these cars and you need to ensure you have the correct one. Length: 25 mm (0.98") Width: 4 mm (0.15") Thickness: 4 mm (0.15") Axially Magnetised through the thickness so that one 25x4mm face is north, the other is south Weight: 2.96g Grade: N38 Coating: Ni-Cu-Ni (Nickel-Copper-Nickel) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 6.1lb / 97oz / 2757g Calculated Max Vertical Hold-guidance only: 1.22lb / 19.4oz / 551g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter. Thin neodymium magnets DO NOT FLEX, if you attempt to flex them they will snap in half.

Guy's Budget Range 25 mm x 4 mm x 4 mm N38 grade block - PACK OF 50

Technical Specifications These are from our BUDGET RANGE of magnets, ideal for the budget conscious when the tolerances are less important than normal.  Instead of our usual +/-0.1mm tolerances, they have +/-5% tolerances on any dimension. These are ideal for some Scalextric and some slot cars. Please note that several different sizes of magnets are used in these cars and you need to ensure you have the correct one. Length: 25 mm (0.98") Width: 4 mm (0.15") Thickness: 4 mm (0.15") Axially Magnetised through the thickness so that one 25x4mm face is north, the other is south Weight: 2.96g Grade: N38 Coating: Ni-Cu-Ni (Nickel-Copper-Nickel) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 6.1lb / 97oz / 2757g Calculated Max Vertical Hold-guidance only: 1.22lb / 19.4oz / 551g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter. Thin neodymium magnets DO NOT FLEX, if you attempt to flex them they will snap in half.

Guy's Budget Range 25 mm x 4 mm x 4 mm N38 grade block - PACK OF 10

Technical Specifications These are from our BUDGET RANGE of magnets, ideal for the budget conscious when the tolerances are less important than normal.  Instead of our usual +/-0.1mm tolerances, they have +/-5% tolerances on any dimension. These are ideal for some Scalextric and some slot cars. Please note that several different sizes of magnets are used in these cars and you need to ensure you have the correct one. Length: 25 mm (0.98") Width: 4 mm (0.15") Thickness: 4 mm (0.15") Axially Magnetised through the thickness so that one 25x4mm face is north, the other is south Weight: 2.96g Grade: N38 Coating: Ni-Cu-Ni (Nickel-Copper-Nickel) Maximum Temp: 80°C / 176°F Theoretical Maximum Pull: 6.1lb / 97oz / 2757g Calculated Max Vertical Hold-guidance only: 1.22lb / 19.4oz / 551g WARNINGS: All neodymium magnets are unsuitable for children; do not ingest. All neodymium magnets are brittle; do not allow these magnets to jump together or to an iron/steel surface - they will break, crack, chip or shatter. Thin neodymium magnets DO NOT FLEX, if you attempt to flex them they will snap in half.

Guy's Magnets 20 mm x 4 mm x 2 mm N52, high grade, neodymium block

+/-0.1mm manufacturers tolerance on any dimension Magnetised through the thickness so that one 20x4mm face is north and the other is south

Guy's Magnets 4 mm x 4 mm x 1 mm neodymium block

+/-0.1mm manufacturers tolerance on any dimension Magnetised through the thickness so that one 4x4mm face is north and the other is south

Guy's Magnets 4 mm x 4 mm x 1.5 mm samarium cobalt block

+/-0.1mm manufacturers tolerance on any dimension Magnetised through the thickness so that one 4x4mm face is north and the other is south