Pendulum clamp for mechanics and motion labs The Pendulum Clamp is a sturdy, classroom-ready solution for suspending multiple pendulums in mechanics and motion experiments. Built with an all-steel bracket, this clamp securely holds up to three pendulums at once without wobbling—making it ideal for side-by-side comparisons and precise timing investigations. Measuring 10 3/4" (27 cm) in total length, the Pendulum Clamp provides the stability and flexibility needed for clear, repeatable pendulum experiments. Why Teachers Love the Pendulum Clamp Multiple pendulums, one setup: Holds up to three pendulums for efficient comparisons. Independent adjustment: Each pendulum holder has its own knurled thumbscrew and locking device, allowing length changes without disturbing the others. Rock-solid stability: All-steel construction minimizes movement and improves measurement accuracy. Easy mounting: Rod clamp tightens with a large knurled knob and opens up to 7/8" (22 mm).