flashing dog collar(FC-216R) (FC-216R)

Specifications:
1) Materials: nylon, PVC, reflecting materials
2) Sizes: 25mm x 50 - 58cm, 25mm x 43 - 52cm, 25mm x 36 - 44cm, 25mm x 30 - 38cm
3) Functions: flashing and waterproof
4) Power supply: cell battery CR2302 x 2pcs
5) Battery life: >40 hours
6) LED quantity: 6pcs