IMPORTANT HANDLING TIPS Despite their metal looking appearance, neodymium magnets are made from a pressed powder which makes them inherently brittle and prone to chipping and shattering. Separate magnets by sliding them, and avoid letting them jump or snap together. Eye and hand protection is recommended for large magnets as they can pose a safety hazard if not handled properly. MAGNET SPECIFICATIONS Size: 0.25 x 0.125 x 0.125 inch (Diameter x Inner Diameter x Thickness) Metric Size: 6.35 x 3.175 x 3.175 mm Grade: N52 Pull Force: 2.2 lbs Coating: Nickel-Copper-Nickel (Ni-Cu-Ni) Magnetization: Axially Material: Neodymium (NdFeB) Tolerance: +/- 0.002 in Max Operating Temperature: 176 F Part Number: R14X18X18N52-20PK Quantity Included: 20 Rings