These snaps are from LEFT to RIGHT, Small, medium and large.
The Large one can stand up to 175 lbs before bending.
We use the small one on 1/4" leashes and 3/8" wide leashes, the medium on 3/8" wide and 1/2" wide and the large one can be used also on the 3/8" and the 1/2"
Some Extra Colors in 1/4" Leashes choose Below