These are the motorized electric roller skates that propel a wearer at up to 8 mph. Riders up to 180 lbs. simply strap the skates on over their shoes, held securely in place by dual fasteners similar to those on ski boots. Each skate has an 80-watt motor integrated into its rugged fiber-reinforced nylon frame that powers its smooth-rolling 6"-diameter rubber tires. A handheld wireless remote control throttles both skates simultaneously up to 8 mph; gentle stops are achieved by pulling the switch back—engaging the skates' electronic brakes—or by dragging the heel stopper. Each skate has a removable lithium-ion battery that provides up to 40 minutes of continuous power (5-6 mile range) ideal for travel across a school campus, to a local cafe, or while roaming a neighborhood festival. Batteries recharge in five hours using the included AC adapter. Includes one removable training wheel. Fits men's shoe sizes 6-14, women's 7-15 1/2. For ages 16 and up. 10 1/2" H x 9 1/2" W x 9" D. (16 lbs.)