Hansgrohe Addstoris Q Grab Barwall mounted material: metal length: 348 mm with mounting material concealed fastening drilling distance: 326 mm diameter drill hole: 6 mm MoistureProof Durable and moisture consistent material This high quality product has been made from materials that are suitable for bathrooms. By following the hansgrohe care instructions, long lasting pleasure is guaranteed. ScrewFixation Quick, secure and stable to install The accessory can be mounted securely