One size for any size dog or age Endorsed by dog trainers Designed to fit any doorknob, handle or hook, up out of the way of foot traffic Perfect for travel, really helps with doggie vacations! Three sets of strategically-placed, custom-made, lead-free bells enable any breed of dog access to ringing Ding-Dong-Bells, measure 26" long Pleasant sounding Made in the U.S.A.
The Ding Dong Bells are perfect for the stubborn pup...exciting patterns and a sweet "ding" for potty time.