Made of silicone material for durable and use. This watch case is compatible for Polar M400 M430. Protects your watch , dirt, scratches and damages. The watch cover makes your watch even more attractive and fashionable. This is your best present for your friends and family. Feature - Color: Blue. - Material: Silicone. - Size: About 6.01 x 4.1 x 2cm - Made of silicone material for durable and use. - Protects your watch , dirt, scratches and damages. Easily to install or remove the case on your watch. - According to the original watch radian custom, and ensure the coincidence degree of the product installation. - Precise cutouts does not interfere with any of the buttons or knob, no need to remove the case. - Super light, don’t add much weight to your watch. You almost can’t feel the weight of it on your wrist. - Warm tip: Dear buyer, due to lighting effect, monitor’s brightness, manual measurement and etc., there could be some slight differences in the color and size between the photo and the actual item. Sincerely hope that you can understand! Thank you! Package list: 1 x protective watch cover