The Tonic Studios Table Tidy Storage System features storage containers with a chrome finished solid steel frame, hand washable fabric and a reinforced base. Each one will effortlessly clip to your table or craft desk (edge thickness: min 15mm/max 60mm). The Main Caddy (model 1643E) measures 12 in. x 8 in. x 5.25 in. (30.5 x 20.3 x 13.3 cm) each. The Single Pocket (model 1644E) measures 6 in. x 4.5 in. x 3.8 in. (13 x 11.5 x 9.5 cm) each. The Double Pocket (model 1645E) measures 6 in. x 4.5 in. x 7.5 in. (13 x 11.5 x 19 cm) each.