Material: Nylon strap
LED Powered by 4pcs CR2016 (include) Cell Button
Battery life:60 hours
3 light modes:Continuous on,Slow flashing, Fast flashing(with switch to select).
Note: Please make sure to measure your dog for accurate sizing before purchasing to ensure the perfect fit.
Chest straps: S 32-40cm
Chest straps: M 38-50cm
Chest straps: L 43-60cm
Chest straps: XL 68-70cm