Dog Door Bells. NEW. House Training Dog to ask to go outside. BLUE

See photos & video. BLUE strap & silver bells to hang on door so dog can ask to go outside. Several snap positions to vary length. I bet you can train a cat to use these too. it’s nice way for them to ask to be let out. listen in the video. I'm teaching my older dog to use them. You can teach an old dog new tricks it turns out. :) Fully extended 43", at first snap option it hangs about 35", next snap option about 33" and shortest option hangs about: 30" its new, I got it in a set & only needed one, so here's the other one :) I forgot my dog hated bell sounds, & even with declining hearing, these were not for him. It was a 2 pack & I sold the other one. They are very nice quality & a good jingle sound. I would get them again if they worked for my pet. Happy dog = Happy human.