Adjustable - Five full sizes of adjustability will keep these skates in use for more than just one season; Speed Lacing - Secures skates with one pull making it easy to put on and take off; Stability Plus Cuff - Provides the right amount of support, flexibility, reliability and comfort to have a good time; F.B.I. frame - a vibration-absorbing composite frame that is interlocked with the base, keeping the young rider more balanced by being lower to the ground; 72mm 80A Wheels