This underwater activity is an awesome way to spend a day at the pool! Unfold the rings, pop on the depth-adusting air chambers (with fun sea creature prints), toss them in the water, & you've got the perfect underwater obstacle course. Includes 3 30in-tall swim thu rings in multiple colors, 3 depth-adjuster air chambers, travel bag, & instructions printed on packaging insert. Adult supervision recommended for underwater play. Not suitable for ages under 3.