B&W International Chain Guard Black. Encloses free wheel derailleurs and chain. Can be used with every bike case and bike bag. Specifications for B&W International Chain Guard: Manufacturer: B&W International Color: Black Additional Features: Made from Robust Polyester Size: 24 x 11.6 x 0.4 in Features of B&W International Chain Guard: Made from robust nylon Internal Dimensions: 24 x 11.6 x 0.4 inches External Dimensions: 24 x 11.6 x 0.4 inches Weight without packaging: 0.8 lb The dimensions are length x width x height The weight specied is for each product and does not include any additional inserts Technical changes are subject to modifications without notice. Package Contents: B&W International Chain Guard B&W International 96350: Chain Guard Black