Adjustable sized inline skates 2 unique wheel set ups Ultra comfort removable liner Bearings ABEC 5 Wheels: 35-40: 3x100mm 41-47:3x110mm 85A super high rebound wheels The MT3 Micro Inline Skate is the ultimate performer for kids, teens and adults alike. With a polypropylene shell for comfort and customisable flex. The high resistant propylene removable adjustable cuff ensures the perfect fit completed with thick memory fit liner. Designed with the rider's comfort in mind, multiple vents line the boot for natural acclimation. Built with Fram 6000 Series Height Quality Aluminum the MT3 inline skate has reinforced strength for longevity. Uniquely, the wheel setup can be changed based on the rider's preference. 3x100mm super high rebound wheels with 235mm CNC 6000 Series High Quality aluminum frame 3x110mm super high rebound wheels with 243mm CNC 6000 Series High Quality aluminum frame Each setup is designed to be high performing; the larger wheel setup enables a smoother faster glide covering more distance with greater ease. In comparison the smaller wheel set up is lower profile design to lower the center of gravity with increased speed and maneuverability.Durable safety shine lock buckle and 45 degree micro ratchet ankle strap keeps the wearer's ankle safe, secure and firmly in place for ultimate control. Age Range 5-Adult Max Load 100kg Weight 2.7kg Wheels 35-40: 3x100mm 41-47:3x110mm 85A super high rebound wheels Frame Aluminium Top Buckle Safety Shine Lock Buckle Cuff Lightweight Bearings ABEC5 Liner Memory + Perfect Fit Liner Foam Laces Yes Ventilations Insole Yes Please be patient with ALL Roller Skate & Roller Blade orders as there is a Global Shortage and some sizes are currently out of stock! Feel free to email us with any sizing inquiries for availability - Thanks for all your patience and support you all rock! Team Fufanu!!