- Bones Wheels X-Formula CJ Collins Dino-Sortas set of 4
- black
- V6 Widecut shape
- 53mm diameter
- width 33mm
- 99A hard wheel
- X-Formula is designed to roll over rough terrain like softer wheels, but still slide like a hard wheel
- great for street, parks & smooth surfaces
- high resistance to flat spots
- made in USA
