Birch plywood, glue, silver trombone mouthpiece, silver tuba mouthpiece, clear latex balloons, aluminum tubes, epoxy paint, plastic tube, pine lumber. Aperture no.01: 48 x 20 x 3 inches. Aperture no.02: 67 x 30 x 3 inches. Aperture no.03: 69 x 13 x 3 inches. Aperture no.04: 96 x 27 x 3 inches. Aperture no.05: 79 x 48 x 3 inches. Aperture no.6 and no.07: 48 x 48 x 3 inches