Steel frame. Front and rear caliper brakes. Diamond frame type. Includes stabilisers and a full chain guard. Frame size: 8.5in (21.6cm). Wheel size: 12in (30.5cm). Suitable for leg measurements 42 to 47cm. For ages 3 to 6 years. Weight 6.8kg. Some assembly required - fit front wheel, saddle, pedals, handlebars and align brakes (instructions included).