3 Wheel Mini Motorcycle Trike by Rockin? Rollers is a safe easy to operate battery powered ride on toy that can be used on any hard flat surface. Our cars are made from the most durable plastics allowing for an always smooth and enjoyable ride. 3 Wheel Mini Motorcycle by Rockin? Rollers is a terrific way to keep kids active and will surely become your child?s preferred method of transportation! Rockin? Rollers ride-on?s offer a variety of cars motorcycles ATV?s go-karts and other battery-powered vehicles for children 2-6 years old. With life-like features ease of use and durable body construction they provide miles of enjoyment for children.