... LED light. The optical fiber be weaved into webbing,can be withstanded super Nylon dog leash TZ-PET5001O LED dog leash Waterproof ... cm or customized (47.24* 0.98 inch) * Material: Black nylon webbing, 4 LED light,round optical fiber. * The optical fiber be ... * Runtime: 60-80 hours continuously* Light color: red, yellow, blue, white,orange,green optional* Battery: 2 * R2032 button cells (included in ...