The door seals against a foam rubber gasket and is held closed with two roller latches. The open door glides underneath the cabinet to maintain the cabinet's small footprint. Dimensions: 21 x 18 x 13cm (81/4 x 7 x 5") I.D. door opening 19 x 11cm (71/2 x 43/8"). A jar of silica gel desiccant is included. Translucent polystyrene cabinets allow viewing of contents from any angle. Can stack up to five cabinets to save bench space. Length x Depth x Height: 23 x 20 x 17cm (8-7/8 x 7-7/8 x 6-5/8").