Installed onto the appropriate railing system consisting of vertical mullions, locating clips and fixings. The mullions are fixed directly to the face of the QuadCore® Karrier System using Fablok® fasteners. Adjustable locating clips, factory-fitted with rubber isolators, prevent rattling and wear on the cassette. The design of the cassette allows it to hook onto the locating clips in the vertical mullion. The cassette is secured to the mullion using stainless steel self-drilling screws, to prevent movement in service.