EASY TO INSTALL -- The front-mounted bike seat is easily installed & removed, no need more tools. Applicable to Mountain Bikes, Hybrid Bikes, Fitness Bikes. SAFE & COMFORTABLE -- USA Safety Standard Certificate. Comfort, safety, an attractive and innovative design, and a good position where the child can fully explore the scenery. Soft and comfortable saddle, hollow for ventilation. Adjustable handrail and fork arm. FOLDABLE -- Easy-folding, ultralight (about 2 pounds), with a free packing bag. Designed and tested for kids from 2 to 6 years old, up to 4.1 feet(125cm) height. INTERACTIVE & FUN -- Front mounted design, better view and more enjoyable ride for the child, enjoy safe family bonding bicycle rides with this Child Seat made with Aircraft-Grade aluminum alloy construction.