Wooden Dynamic Trolley
Model No. HV-EXP4319
Wooden Dynamic Trolley Science Labs A pair of identical wooden trolleys (300mm long), mounted on three wheels. A spring loaded rod is fitted to give impulse when released. It has a provision for stacking the trolleys on top of each other with removable pins. Supplied complete with 3 elastic rings 3 springs 8 pins (for stacking) 2 rubber corks 2 needles 1 releasing pin..
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