- High quality, naturally white hardwood.
- Can be stained any color
- Precision cut by computer
- Authentic trigger and winch mechanism
- True skein torsion power- not a wimpy spring
- Actual range from 20 to 40 feet or more! Learn More
- For professional scientists looking to experiment with radiation
- Radioactive material NOT included.
-Customer must provide their own source material for experimentation.
Edmund Scientifics does not sell Polonium or other alpha particle materials. Learn More
- Design a yo-yo that matches your skill level
- Modify performance of three completely different yo-yos
- Interchangeable parts allow you to customize responsiveness
- Includes 3 different YoMod Yo-Yos (G-R, BX2 and ProSpeed)