Every Cavaletti product offers easy set up with a variety of heights. You can set up a low grid or bounce workout. The Li’l Stackers will raise your poles in 2″ increments by stacking and snapping the stackers together. The Stacker & Stacker Stand Combo consists of a Stacker and Stacker Stand that makes an incredibly clever jump system, reaching heights up to 3’6″ in 3″ increments. Poles are sold separably.