Tripp Lite SRCABLERINGSM Cable Management Rings for Rack Enclosures - Button Mount, Small, 2 x 4 in., 12 Pack. Type: Cable ring, Product colour: Black, Housing material: Polycarbonate (PC). Width: 60.8 mm, Depth: 111.9 mm, Height: 18 mm. Quantity per pack: 12 pc(s), Package width: 159 mm, Package depth: 192 mm. Master (outer) case width: 337.1 mm, Master (outer) case length: 406.9 mm, Master (outer) case height: 500.1 mm