https://www.ecollar.com/locations
Small - One Piece 5"W x 7"L
Medium - One Piece Flap 8"W x 11"L
Large - One Piece Flap 10"W x 15"L
Belken Inc. dba: Pets Contained P.O. Box 180 Newbury, Ohio 44065 Email: info@petscontained.com