The most versatile crawl tunnel ever! Four self-supporting sections can be attached with built-in hook-and-loop fasteners to form one long tunnel and a variety of fun configurations. Or, use individually with other items as part of an obstacle course. So adaptable, you can even use it as a target to kick, throw, or roll through! Each section measures 23''L x 25''H. Accommodates children up to middle-school age. Easy transport and storage. Carry bag included.