Features: 1.The ruler is the ultimate template tool for creating professional layouts in tiles, brick pavers, lumber and laminate. The innovative, four-sided mechanism quickly forms to the shape of your work area, which can then be used as a stencil for cutting your work piece. For professionals, the ruler can used to make bulls eyes, arches and plumb cuts on roof joists. For the do-it-yourselfer, use the ruler to help lay a brick patio or tile floor. The possibilities are limitless with the ruler. 2.California residents 3.Stainless steel material for added strength and flexibility. 4.Ruler can be set-up in seconds not only improving quality but saving time. 5.Just form the tool into the shape of your work area and then use it to mark your work-piece to be cut. 6.Repeat accurate marking for creating bull s eyes, arches, repetitive angles or shapes. 7.Tool can be set to mark bricks, tiles, lumber and laminates. 8.All the arms are dual-calibrated in inches and metric measures. 9.Unique tightening mechanism for one-handed operations. Packing list: 1 * Four-sided folding ruler