Features: Strong Adhesive: The adhesive backing ensures that these magnets stay in place making them perfect for use on a fridge or other metal surfaces. Good Quality: We use premium quality magnetic materials and strong glue to ensure that the magnets is strong enough and better to use. Easy to Use: These small sticky magnetic dots circles magnets come with peel & stick magnets stickers for hassle-free application. Widely Use: This flexible and durable magnetic dots with adhesive is perfect for home school coffee house decoration. Perfect for any DIY projects. After-sales Service: If you have any questions after receiving the product please feel free to contact us and we will provide you with a satisfactory answer. Notice: Actual color may be slightly different from the image due to different display and light effect. Please allow 1-3cm deviation due to manual measurement. Specifications: Material:Rubber+magnet Coercivity: 980 (KA/m) Residual magnetism: 1.2 (T) Intrinsic Coercivity: 950 (KA/m) Maximum magnetic energy product: 1.3 (KJ/m3) Density: 7.5 (g/cm3) Size: Diameter: 20mm Single sheet size: 15*20cm includes: 2 Sheets * Magnet (100pcs inside) "