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!
A combination of three of our great discovery toys, all in one package!
You don’t think recycling is cool? Get a look at this, we’re sure you’ll change your mind!
This is a classic demonstration toy of the powers of magnetic fields!
This classic desk toy will keep you amused!
This advanced physics kit is perfect for older children already versed in physics knowledge!
View the glory of space with this hi-tech telescope set!
At xUmp.com you will find a large selection of scientific products carefully curated by real scientists and educators. We sell everything from educational toys, teacher supplies for science classroom, lab equipment, science toys, science fair supplies, classroom equipment, chemistry glassware, chemistry lab equipment, physics demos, electronics supplies, robots, science kits to geeky science gifts.