Size: according to the NCI， please choose the size， size adjustable

(Subject to the neck circumference， weight is not accurate)

S number: neck size， 15~20cm， fits most Teacup dogs， young cats， mini Tutu (4 pounds or less)

M: neck size， 20~30cm， suitable for small dogs (Teddy， than bears， schnauzers)， adult cats (10 kg)

L: neck size， 30~45cm， suitable for medium dogs (Coogee， France) of Satsuma， a small Golden Retriever， xiaoha (about 25 pounds)

XL: neck size， 45~60cm， suitable for large dogs (adult Golden Retriever， samoyed， Siberian Husky) Alaska measuring neck circumference you want customized.

Collar velvet belt， the buckle， adjustable， convenient and beautiful light and strong. (Only black collar)