Specification:  Material: Black powder coated steel frame & rollersWhole Dimension: 4.88 x 1.97 x 2.6 inch / 12.4 x 5 x 6.6 cm (L x W x H)Thickness of the Metal: 0.2 inch / 0.5 cm Each Roller Diameter: 0.79 inch / 2 cmMax. Door Thickness:...