Hydrogen Spectre 80mm Wheels are designed for ultimate athletic performance. Made in the USA using an exclusive Premium formula, the scooped inner core supports a urethane outer-enhancing speed, mechanical grip and wear. 4 wheels per set. Features: OPTIMAL PERFORMANCE- Controlled speed and excellent wear, 80mm/85A PREMIUM FORMULA- Resilience and rebound SOLID CORE DESIGN- Consistent speed and cornering MAXIMUM GRIP- Excellent vibration control MADE IN THE USA- (4) wheels per set, bearings and spacers not included