Endpin stop for cello, with 3 positions. Designed to attach to a chair/piano bench leg, and adjusts easily yet holds in place due to friction in the plastic buckle.

Easy to use, and easy to modify if you need a different size strap (I used a strap that is 2 inches wide and 36 inches long).

3-20-2020: added half-height endpin stop for sleeker look, and to take up less room.