Used to hold apparatus near the lab-frame. Unlike extension clamps, the swivel, clamps have an integral holder for attaching to a lab-frame or other apparatus., built-in holder grips rods up to 19mm (0.75") in diameter and is adjustable for, forward or reverse-facing adjustment screws. Shaft wing-nut allows the holding, angle of the swivel clamp to adjust through 360° of rotation and can be locked, in place once desired position is achieved. Stainless steel electro-polished finish, or Nickel-plated Zinc construction. Supplied with non-slip vinyl sleeves and, for, temperatures above 100°c, fiberglass covers.