These kids roller skates are crafted with fabric, Pvc plastic, foam for the upper, which is shaped via stitching, injection molding, die-casting processes to deliver a secure, wrapped fit. They feature four adjustable size settings, fastenings made from durable, wear-resistant nylon that tightly hug the ankle to move naturally with each step. The wheel bearings are made of chrome steel and meet the Abec-7 professional standard, ensuring smooth, effortless gliding during skating sessions. A great gift option for kids over 4 years old, roller skating is beloved across all age groups, this pair is sure to bring joy to any child who receives it. Available sizes: Medium(1-4), Small(10C-13C), Large(5-8). Available colors: Black, BlackandPink, Blue, Cotton Candy Dream, Dreamy Purple, Green, Red.