Absorbs up to 3 times more impact than any other insole

Contoured form-fitting design cradles knee

Abec-5 bearings

The Classic Certified is equipped with EPS foam and is multi-certified for CPSC

Spitfire Bighead Skateboard Wheels White/Red 52mm Size:52mm Absorbs up to 3 timesThe Spitfire Bigheads are a set of 52mm skateboard wheels by Spitfire. Spitfire urethane was developed to combine all the desired properties of a performance wheel without sacrificing any one attribute at the expense of the customer. The original Spitfire head is one the most recognisable logos in the history of skateboarding. Features: size 52mm Durometer 99a