HELIUM - Indoor / Outdoor Wheels - sold as set of 8

• Indoor/Outdoor High Rebound Wheels
• Hardness:   Hi-Rebound 83A
• Diameter:  64mm
• Compound:  Cast Urethane Hi-Rebound Compound Formula
• Wheel Info:  Hub = Yellow, Tread = Clear (hub may seem more of a fluro green)
  

The HELIUM Wheels from Roll-Line are the result of a long term research project which has produced very High Performance Indoor/Outdoor wheels. Helium Wheels are specifically designed for Roller Derby and Jam Skating, where Hi-Rebound and Good Roll are needed in combination with incredibly Tight Grip. 
(High Rebound means the wheels can roll over some small obstacles or rocks without stopping cold.) 

What a smooth ride! Roll-Line has developed this wheel giving it properties that are normally not achievable in the one wheel, Super Tight Grip and Good Roll.

Roll-Line based the design of the wheel on a Large Rigid Hub and a Smaller, Thinner Tread, and produced one of the TIGHTEST, and Good ROLLING Indoor/Outdoor wheels available.