These patented “sit-skates” zip along any hard surface by swinging the handlebars from side to side – no motors, no batteries and no pedaling. It is entirely kid-powered! Who likes them? Everybody – especially kids from 3 to 12. It is so well liked that amusement parks around the world feature these racers in their kiddie ride areas! Roller Racers are sturdy enough to hold up to 150 pounds. How safe is it? This is probably one of the safest ride-ons around. It sits low to the ground and there are no sharp edges or spokes.