Toxic Waste Wheels in ULTRA HARD durometer made in SUPERTHANE urethane formula. These provide serious speed on smooth surfaces. Best for concrete - parks, ramps and tracks
- Formula: Superthane
- Durometer (Hardness): VERY HARD 103a (=83b)
- Dimensions: 60mm with 25mm contact area
- Packaging: set of 4
- Made in the USA.