Sturdy clear plastic with chrome accents and nonskid rubber feet. Endless storage options in kitchen, bathroom, and office, etc. No. 52230: 3" x 3" x 2" No. 52330: 3" x 6" x 2" No. 52430: 3" x 9" x 2" No. 52530: 3" x 12" x 2" No. 52630: 6" x 6" x 2"