Includes 30 45 & 60 degree angles. Marked with 1/8in grid and 3in square. Easy to manipulate for quick cuts. Convenient size for home or class. Marked for left or right hand use. Uses include Cutting squares from strips. Cutting strip sets into segments. Cutting pieces for miniature quilts. Trimming foundation piecing. Cutting diamonds triangles & hexagons. Use for Seminole patchwork.