Technical data Type : adjustable roller skates for children Boot : hard case (hard-shell) Frame : aluminum, CNC, anodized Bearings : ABEC-7 Carbon Wheels : 85A PU, 68x24 mm (27-30), 70x24 mm (31-34), 72x24 mm (35-38) Brake : TPR (thermoplastic rubber) Fastening : 2 buckles (upper classic, lower with a clamping pump), laces Maximum user weight : 60 kg Standard : EN-13843 Level of advancement : beginner, intermediate Intended use : recreational riding Additional functions : carrying strap;Properties: Spokey FREESPO KIDS adjustable roller skates: they have a hard shell that eliminates beginners' mistakes such as ankle buckling, these are versatile skates - designed for both learning to skate and for fast, dynamic freestyle and recreational skating, thanks to the size adjustment option, they grow with the child - it is also an optimal solution for those who wear a size on the border, are equipped with high-quality skids made of anodized aluminum, which increases resistance to weather conditions, damage and corrosion. Technical data: skid: aluminum, anodized bearings: ABEC7 Carbon wheel hardness: 85A wheel material: polyurethane (PU) wheel size: 68 x 24 mm - size 27-30 70 x 24 mm - size 31-34 72 x 24 mm - size 35-38 fastenings: two-section buckle, laces compliance with the standard: EN 13843 maximum user weight: 60 kg