The RUBI Delta Level System avoids lippage during tile laying in both floor and walls. Easy and intuitive use. Guarantee flatness and regularity of the laying surface. Utilises an impact removal system. ALWAYS in the direction of the grout. Suitable for tile formats from 30 x 30cm (12 x 12in) or bigger. Always with back buttering. The RUBI Delta Level System Kit contains: 1 x Pair of Pliers, 100 Strips 2mm x3-12mm and 100 Reusable Wedges in a handy bucket.