Rubber Wrist band Strap Only for LeFun Fit Bluetooth 4.0 IP57 Waterproof Smart Bracelet Sports Fitness Tracker Smart Wristband (Wristband Strap Only Green) Rubber replaceable wrist band perfectly suit for LeFun Fit Replaceable wrist band only without the core device Easily detach and replace the original band with extra ones with various colors Rubber made and design makes your LeFun Fit waterproof