This multi-purpose tool is perfect for trimming quilt-as-you-go blocks. The 4 1/2 x 12 1/2 acrylic ruler has a sturdy satin finished aluminum angle. This edge is used to protect the fabric on the front of the quilt block while trimming the bulk underneath. Use the Trimmer By George 3.0 to cut the perfect size sashing and binding for your hoopsisters embroidablocks. 60MM cutter required.