The step stool inside this tower unclips and becomes a chair, turning the standing frame into a 40 x 32 in table and seat at 17.5 in high - two pieces of furniture from one, and each works on its own. Buckles do the converting, with no tools involved. The standing platform measures 17.5 x 16 in and both the tower and the stool are rated 110 lbs. Beech and plywood, sanded and left natural, 16 lbs assembled. The safety bar lifts off once a child is confident. Suitable from 3 years; assembly is required and a guide is included.