[Specification]: XS size: suitable for neck of 11-15 in， width of 0.8 in S size: suitable for neck of 14-16 in， width of 1 in M size: suitable for neck of 15-18 in， width of 1 in L size: suitable for neck of 16-20 in， width of 1 in XL SIZE: suitable for neck of 16-22 in， width of 1 in [warm tip] choose the size according to the actual neck circumference of your dog! Between different colors: the brightness of yellow and orange is high Material: polyester webbing， fish screen transparent surface， light guiding flat optical fiber (length can be cut freely) Color: red， blue， yellow， green， orange， colorful， white， pink. Flashing mode: long light， fast flash and slow flash (controlled by switch) Packaging: one into one OPP bag， each with code number sticker and color sticker The charging model charges for about 2-3 hours and can be used for 8 hours. The product is suitable for dog walking in dark environment or at night， outdoor and pet sports. It emits light through optical fiber and plays a warning role. It can be used by pet when turning on and off the light-emitting function during the day or at night

• [function introduction]: each model has a hidden switch and has four functions: fast flashing， slow flashing， static flashing and off.
• With battery (remember to take off the collar when taking a bath and pull out the battery box directly).
• More and more people go out for a walk after dinner. Take the dog out for a walk. Is there wood or black paint? When the dog can't be found? Especially black!! It reminds me of my chestnuts!， I can't see anything at night， even my eyes!! Youmu has relatives who are as troubled as me!! You really need this!!
• Fashion luminous collar， no longer have to worry about not finding a dog， night travel safety， personality， fashion， handsome， pull the wind.