Features: Aluminum alloy structure is stable and safe.Good choice to take your child out by your bicycle. The bike seat needs to be raised to the same or higher than the bike stem height.If your feet can not reach the ground after raising the seat,it is not suitable for installing this children seat. Fits seatpost diameter: 34mm(1.34”) Fits front inclined beam width: 33-48mm / 1.30-1.89” 2 points fixing design for stable and safe cycling. Pedals height can be adjusted to accommodate children of different ages and heights. 4 levels of horizontal main rod length adjustment. Foldable pedals meet your different demands. Soft cushioned saddle fit nicely around kids' hips and protect their hipbone from injuries. Safety belt,guardrail and non-slip handlebar grip provide more safety during cycling. Easily fold into compact size,easy to pack into gifted storage bag for storage and carry. Quick release attachment,easy to install and remove. Specification: Model: Type A / Type B (optional) Material: Aluminum alloy + Foam + Plastic + Leather Load capacity: 50kg/110.2lb Model Type A Type B Fits Age 3 years old and up 8 months and up Pedal Height Adjustment 4 Levels Horizontal Main Rod Length Adjustment 4 Levels Fits Seatpost Diameter 34mm (1.34") Fits Front Inclined Beam Width 33-48mm (1.30-1.89") Weight 1.2kg 1.3kg Package size: 34*28*15cm / 13.4*1.0*5.9in Package weight: approx. 1.7kg / 3.7lb Package List: 1* Children Seat 1* Storage Bag