Atom Boom Alloy Core 59MM Quad Derby Wheels White 4PK Firm
ATOM Boom Alloy Core 59mm Quad Derby Wheels (4pk) White (Firm)
- Control slide (grip and slide when you need it)
- Absolute best wheel for all cement surfaces hands down
- Light weight (Nylon:82g)(Alloy:86g).
- Speed with control
- Super ball rebound
- Size: 59mm X 38mm
- Durometer: Firm
- Colour: Black
- Core: Alloy
- Made in the USA
Atom do not use a usual durometer rating, instead their own “BOOMthene” formula carries their own ratings of “Firm”, “X Firm” and XX Firm”