Germany Type Bridge Hose Clamps, Worm drive Meet with DIN 3017 Standard9MM wide Band, non-perforatedIdeal use for connecting sprial hosesSize for brige clamps belowWD-BHC 9mm Wide Band 52-102mmWD-BHC 9mm Wide Band 102-152mmWD-BHC 9mm Wide Band 152- 205mmWD-BHC 9mm Wide Band 205-252mmWD-BHC 9mm Wide Band 252-305mmWD-BHC 9mm Wide Band 305-350mmWD-BHC 9mm Wide Band 305-406mmAdditional sizes available upon request.