High-quality weight with a hook fitted through the center allow you to hook weights together in tandem or use them one at a time.
Pass-through hooks are included on both sides of the weight!
Build over 60 projects with this deluxe version of the Snap Rover kit!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Buy Newton's Cradle or balance balls here! This classic science desk toy that will keep you amused and teach you physics.
Use this temperature-controlled soldering station for a variety of soldering applications!
This toy combines the wonders of Sea Monkeys and glow-in-the-dark fun, all in one!