Specifications: Super strong Rare-Earth magnets, once they get stuck with each other, they are hard to break apart. Perfect for sticking notes on fridge doors. Great for do-it-yourself projects. Item Name: Magnets Material: NdFeB Magnets Plating: Nickel + Copper + Nickel Triple Layer Plated Shape: Cylinder Quantity: 10Pcs Grade: N35 Tolerance: 0-0.1mm Max Working Temperature: 80℃/176℉ Features: Strong Magnet, Cylinder Shape, Rare Earth Size: 10mm x 3mm/0.39" x 0.12" (Approx.) Notes: Neodymium magnet is extremely powerful, pls take care of your fingers or other body parts to avoid injured between 2 pieces big magnet. Neodymium magnet is very fragile & easy damaged, pls handle gently. The max operating temperature is 80℃/176℉. Due to the light and screen setting difference, the items color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 10 x Magnets