This is a great bike seat to take kids out on the trails and into nature. It packs flat and is easy to assemble. Takes a minute to attach to your bike and uses no tools only straps. It is an exciting way for kids 18mo-4 to get into and enjoy biking. My daughter loves hers, and at 3yrs old is riding a pedal bike and loves it. *The seat is light -less than a kilogram *Has safety straps to keep your kid secure *easy to assemble -no tools *fully adjustable and fits most bikes. $100