?Surfaces and Edges?: We have made proper chamfer, and the fillets and edges are finely polished, which makes you feel very comfortable and ensures agile play with precise movements and good gliding properties. ?2 Size for Choice?Our mouse pads are available in two sizes M: 36 * 30cm (14 * 12in); L: 45 * 40cm (18 * 16in). Portable and are good choices for game.Recommended to use 3360 and above mouse sensor. ?Waterproof Sweatproof?Resin material has waterproof and sweatproof characteristics, if you accidentally touch the water on the mouse pad, you can simply use a rag to clean it. ?Non-slip Adhesive Base?(easily removable)The non-residue adhesive base leaves no trace if need to remove the pad. Works great on any flat and smooth surface. ?Hard Resin Mouse Pad?Compared with the cloth mouse pad, the resin mouse pad has a smoother surface, more durable and less deformed. Resin surface material ensure the mouse move fast and accurate.