The Multi Size Block Trimmer by Purple Hobbies allows you to trim your blocks to the precise size you need. Create frames from 2" by 2" to 15-1/2" by 15-1/2" and so many other sized squares and rectangles in between! It is laser cut from bright green acrylic for maximum visibility on any color fabric. Fantastic for quilt blocks, borders, embroidery, cross-stitch, fussy cutting, and so much more! The Multi Size Block Trimmer features 24 interlocking pieces with an assortment of 6 sizes and a reusable container for storage.