Supertek ABC's of Physics

Perfect for group experiments, and home school. Comes in a reusable plastic snap lid box for storage. Includes: Stop Watch, Tape Measure, Single Pulley, Double Pulley, Table Clamp Pulley, Spring Scale, Wooden Ball, 1.75" Steel Ball, 1" Steel Ball, Hall's Carriage, Weight Set, String, and Activity GuideYou may also like Hand Crank Van De Graaff Generator, 9.8" Sphere - Up to 100,000 Volts - Includes Assembled Base, Discharge Wand & Grounding Wire - 24" Tall - Eisco Labs.