If you need Collars LED Light please buy from this link :
Specifications: XS = Width 2CM * Length (28 ~ 40) CM S = Width 2.5CM * Length (34 ~ 42) CM M = Width 2.5CM * Length (40 ~ 48) CM L = Width 2.5CM * Length (45~ 52) CM XL = Width 2.5CM * Length (52 ~ 60) CM Product Name: LED dog collars Material:Polyester webbing , fish screen translucent surface , bright guiding light flat fiber ( new material ) Color:Red, blue, yellow , green, orange , colorful , white, pink. Flashing mode:Long light . Flash Slow flash ( via switch control ) Packaging:One into an OPP bag, each have a code number and color stickers stickers Battery:2PCS CR2016 ( include ) button battery -driven Battery life:60-80 hours, normal 2-3 months ; battery can be replaceable , convenience stores or supermarkets are available . By CE, ROHS, EN471, cleaning removable electronic part of the product is suitable for dark environment or walk the dog at night , outdoor and pet movement through the bright fiber optic light, from a warning , while expression of individuality , the fashion design fashion , day or night, when you turn on and off a light emitting function are suitable for pet use.