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!
Watch shape memory alloy technology in action with this solar-powered kit!
Working model representing the sun, earth, and moon and their relationships.
This fun neon pin art features blacklight sensitive pins!
This high-powered LED UV flashlight is perfect for lab applications, detection purposes and more!
This project book and sample kit introduces you to shape-memory alloy technology!
This classic desk toy will keep you amused! Large, 7 inch tall version.