In plastic. 3 kickboard-type wheels with removable aluminum T-bar handlebars and adjustable to 3 heights: 66 cm, 71 cm and 76 cm. Steering lock system. 121mm front and 80mm rear wheels. ABEC 5 bearing. Deck dimensions: 29.5 x 12 cm. Maximum user weight: 50 kg. Attention! To be used with protective equipment. Do not use on public roads, prohibited for children over 50 kg Attention! Not suitable for children under three years, small parts. Choking hazard. Skill required. Fall hazard.