Bentley's Pet Stuff Comfy Nylon Martingale Dog Collar, Black, 1-in x 16-21-in

3/8-in x 10-12-in 5/8-in x 14-17-in 3/4-in x 16-21-in 1-in x 16-21-in 1-in x 20.5-27.5-in 1.5-in x 20.5-27.5-in