The Avigo Convertible Skate Combo adjusts to four sizes J10 ? J13. Skate also converts from a training skate (rear two wheels on the outside of the chasis) to in line skate (all wheels in line, inside chasis). All tools to convert the skate from a trainer to an inline are included. The Avigo Convertible Skate Combo includes safety approved kids multi sport helmet and a pair of Kids Knee and Wrist Guards. Toys"R"Us is the exclusive home for great deals on durable and economical kid"s bikes and adult bicycles from Avigo. From the first ride-on training wheels to perfecting BMX stunts, Avigo girls and boys model bikes come in all of today"s coolest styles as well as traditional designs at the right price for growing children. Built with the latest bicycle safety features, long-lasting quality and trademark Toys"R"Us money saving value, there is an Avigo bike just waiting for you to get on and ride! Be sure to visit our ExclusiveAvigo Brand Store for the hottest bikes, ride-ons, scooters, skateboards, safety equipment and more.