This connector is used for replacing your old or broken radiator coolant hose connection. Made of quality plastic with service, , and not easy to crack. Direct replace, easy to install. Dimension: 8.1x7.3x5.3cm / 3.19inch x 2.87inch x 2.09inch (L * W * H) Outer Diameter: 34mm / 1.34inch , 47mm / 1.85inch Inner Diameter: 29mm / 1.14inch , 40mm / 1.57inch Part Number: 1K0122291BM Fit for: for A3 2.0L A/T Base Hatchback 2010-2013 Material: Plastic Color: Black Package Contents: 1 pcs * Radiator Coolant Pipe Connector Hose Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.