The Bien Twister PLUS Levelling System is an essential component for outdoor porcelain paving projects. This two-part system features a user-friendly twister screw and nut mechanism, designed for floor tiles with a thickness ranging from 6 to 22mm. Each pack includes 200 pieces of the Twister Screw Plus. The Twister PLUS Screw Accessory is a single-use component, compatible with the Twister PLUS Nut, forming a complete levelling solution.