Kids love a bow like their parents sometimes, and compound bows are very popular just like this junior compound set. When the string is pulled back the wheels roll over making it easier to hold the string when aiming. When released the string speeds up and shoots a faster arrow. This is the appeal of compound bows and this set is designed for starting ages between 7-12 years. Poundage has some adjustment by unwinding the limb bolts a couple of turns and the draw length can be changed. Great little set for budding archers.