Cosmos Black Color Neoprene Soft Protector/ Bag/case + Silicone Soft Skin Protector Cover for Apple MAC Magic Mouse Neoprene exterior is extremely durable and resistant Black carabiner hook (included) allows you to attach it on bags and backpacks High quality zipper and sturdy zipper tabs for quick and easy access. Silicone skin perfect for removing fingerprint smears and dust. Both the bag and the silicone skin only fits for Apple Magic Mouse.