SeaSucker 12mm Plugs Black. Includes two plugs and a QR skewer. Specifications for SeaSucker 12mm Plugs: Manufacturer: SeaSucker Color: Black Fabric/Material: Anodized Aluminum Height: 6 in Length: 12 mm 6 in Width: 4 in Weight: 1 lb Features of SeaSucker 12mm Plugs This product was designed to replace your rear wheel strap it is incomplete on its own it MUST be combined with an existing Rear Wheel Strap to work. Minimal assembly required. Package Contents: SeaSucker 12mm Plugs SeaSucker BV1029: 12mm Plugs Black