Metal Dynamic Trolley, 2-Pack

This dynamic trolley is an all-metal, compact design used for mechanics experiments in physics classrooms. One end of the metal body carries an integral spring plunger and trigger system for explosion experiments, while the other end has a clamping screw for attaching ticker tape. Additional built-in features include Velcro pads for non-elastic collision experiments and locating pins that permit secure stacking of two or more trolleys. The all-metal construction ensures durability through repeated classroom use.