Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6022236.

This is a dog poop bag container that clips onto average round rope style leashes for dispensing bags from a roll. Many of these are of similar size/shape, but this one is designed specifically to hold Earth Rated bag rolls like the ones pictured here and linked below. Feel free to comment if it fits another brand of bags, or let me know the dimensions of your roll if it does not fit and I'll be happy to make additional versions that accommodate those as well.

https://www.chewy.com/earth-rated-compostable-dog-poop-bags/dp/36174

I recommend printing this in TPU.