Features: Imported magnetic material, strong adsorption, can be adsorbed on iron objects such as refrigerators and iron gates. It can be repeatedly erased and reused, and the surface polyester film is easy to wipe off. High quality environmentally friendly materials, smooth and delicate. It is made of high-quality rust-proof material, does not contain any impurity-grade waste, and has a long service life. Waterproof, rust-proof, high-performance soft magnetic alloy material, the surface is clean and smooth, and durable. It is ideal for learning, living and working. Specifications: Condition: 100% Brand New Material: Magnetic (Rubber Magnetic), Iron (Iron Powder Bonding) Colors: Black, White (Optional) Thickness: Magnetic: approx. 0.3mm Iron: approx. 0.5mm Size: approx. 40*30cm / 15.8*11.8in Package list: 1 * Calendar Blackboard Note: 1.Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. 2.Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. 1、Imported magnetic material, strong adsorption, can be adsorbed on iron objects such as refrigerators and iron gates 2、It can be repeatedly erased and reused, and the surface polyester film is easy to wipe off 3、High quality environmentally friendly materials, smooth and delicate 4、It is made of high-quality rust-proof material, does not contain any impurity-grade waste, and has a long service life 5、Waterproof, rust-proof, high-performance soft magnetic alloy material, the surface is clean and smooth, and durable