Specialized Training Wheels Black 20"

.top{margin-bottom:30px;}.top li{margin-left:5%;margin-right:5%;margin-top:10px;line-height:120%;list-style-position:outside;}This is a three-position training wheel system, with tool-less installation and removal, so you're always the hero without so much as a screwdriver. Reinforcing this, the tubular steel arms are built to take a beating, while the foam tires will never go flat.Closed-cell foam tires.Compatible with 2013 and newer models of the Hotrock or Riprock 20-inch Coaster models.Tubular steel arms.