Chemglass Life Sciences Clamp, Three-Prong Extension, Large, Single Adjust, 10 1/2in OAL 

Clamp, Three-Prong Extension, Large, Single Adjust, 10 1/2in OAL. Nickel-plated zinc alloy clamp has high tensile strength and corrosion resistance. Fully enclosed stainless steel springs provide smooth operation. Three-prong clamps are available in single and dual adjustment. The small clamp has a 1 (25mm) maximum grip size with a 1/4 (6mm) O.D. extension arm. The medium clamp has a 1 1/2 (38mm) maximum grip size with a 1/2 (13mm) O.D. extension arm. The large clamp has a 2 1/2 (64mm) maximum grip size with a 5/8 (16mm) O.D. extension arm. Complete with removable vinyl and fiberglass covers for easy cleaning.