Soft set ups with different densities of foam and reversible supports. Use individual pieces or progressively in groups. Soft log and beam are 12" cross section and 4 ft. long. 2 mats 2' x 4' and 2 mats 2' x 6'. Half cylinder 24" dia. X 24" l. The Little Chug Engine is a great addition to this piece. Also check out the rest of out soft play selection.