Echo Flow 60mm Aggressive Wheels are constructed with a wheel profile that is playful while still offering great maneuverability. Echo's semi-bullet profile wheels are crafted from premium Super High Rebound material and have been thoroughly tested for both anti-rocker and flat setups. Due to the slim bullet profile side walls, this wheel will work exceptionally well on flat setups where the risk of wheel bite is minimal. Supplied in an environmentally friendly cardboard box.