Downtown Pet Supply Grooming Arm with Clamp (36" Adjustable Arm) and Dog Grooming Loop + Two Free No Sit Haunch Holders Grooming Arm adjustable to 36", clamp opens to 1 3/4" wide 18" Grooming Loop FREE Small/Medium No Sit Haunch Holder - (19" and 21") Brand: Downtown Pet Supply Note: Screw the hex nut located on the underside of clamp tightly for maximum stability