Usee brand of kids bike NameFirst step Size: 12” Color:yellow, blue , purple, green Frame:: aluminum alloy, Fork :steel Handset: hand set 8pcs, aluminum alloy hand bar, ED stem , zippered Thickening Foam Pad stem protective cover, Brake : aluminum alloy V brake , Half aluminum Brake lever Wheels : aluminum rim (12″*1.75") Tire(12"*1.95") Saddle: High elastic foam pad, soft and comfortable , seat post quick release