Pendulum Bobs for Simple Pendulums - Rapid PH10594/5, A 25mm, Steel bob weight ideal for use as a simple pendulum. Rapid Simple Pendulum - - Steel - 25mm
Pendulum Bobs for Simple Pendulums - Rapid PH10594/1, A 13mm, Steel bob weight ideal for use as a simple pendulum. Rapid Simple Pendulum - - Steel - 13mm
Pendulum Bobs for Simple Pendulums - Rapid PH10594/3, A 19mm, Steel bob weight ideal for use as a simple pendulum. Rapid Simple Pendulum - - Steel - 19mm