Product Description Spare part for pannier rack: clamp sleeve for the tubus clamping block. Models:Dimensions:15.0 x 7.6 x 12 mmManufacturer Number:33303Manufacturer Number:33305 Contents:1 x tubus clamp sleeve Manufacturer: tubus carrier systems GmbH Virnkamp 24 48157 Münster Germany contact@hebie-group.com