Toxic Acid Rain Wheels in VERY HARD durometer made in SUPERTHANE urethane formula.  These provide serious speed on smooth surfaces. Best for concrete - parks, ramps and tracks. 

• Wheel Color: Green/Yellow SWIRL
• Graphic: Original Acid Rain graphics on BOTH wheel sides
• Formula: Superthane
• Durometer: VERY HARD 103a (=83b)
• Dimensions: 59mm with 26mm contact area
• Packaging: set of 4
• High-quality full color graphics
• Made in the USA