The Gaffer Grips are quick mount multi-purpose clamps that will grab on most surfaces flat or round. They reinvent the standard spring clamp by adding strength and versatility. The Adjustable Gaffer Grip has one fixed baby 5/8" (16mm) stud and one reversible baby 5/8" stud with both 1/4"- 20 and 3/8"-16 threads on either side. The reversible stud is mounted in a baby 5/8" (16mm) receiver. The jaws can be adjusted from 0.98"-2.56" (25-65 mm) and has a black finish.