Versatile, expandable roller skates are ideal for children with a magnification of up to 4 sizes! Resize easily with a single button. They are suitable for beginners but also for advanced. Skates have a reduced center of gravity. They are durable, strong and very comfortable thanks to the soft padding. The ankle is rigid and high enough for greater support and stability. The frame allows the wheels to be easily replaced and upgraded from 4-wheel 72mm to 3-wheel 80mm thanks to the 3WD system. Their advantage is speed, dexterity, maneuverability and low weight.