The automatic yo-yo is here! Featuring Auto-Return Technology, Reflex™ automatically returns to the hand without having to tug the string! Utilizing a centrifugal clutch, Reflex returns automatically when it reaches the end of its spin. Reflex is a take-apart design featuring a high speed trans-axle for longer spin time, light-weight body, and a wide string gap that makes learning tricks easy! This model is perfect for beginners; Reflex is often referred to as a 'yo-yo with training wheels'!
This adapter-powered butterfly uses Flexinor wires to create a realistic visual effect!
The Ball of Whacks is the perfect creativity tool for innovators, artists, engineers, writers, students, and you!
This black scorpion specimen is great for the classroom setting!
Discover a world of kaleidoscopic effects within this perfectly clear prism of the Light Crystal!
Great microscope for viewing both slides and 3D objects such as flowers, bugs, rocks and more. Includes all accessories!
Learn about hydrogen fuel cells with this incredible kit!
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.