Block on Board - Create an entire block with just one die! The GO! Wonky Heart makes it easy and fun to play with fabric color and block layout to create your own quirky heart shapes. This fabric cutting die is part of our BOB (Block on Board) series that allows you to build an entire block with just one die. Use your GO! Die Cutter and 10" pre-cut squares. There is no need to trim as you go because the GO! Wonky Heart is designed for easy piecing. TIP: Use your 10" pre-cut squares for a fast and easy quilt! Compatible with Go!, Go! Baby, Go! Big, and Studio* cutters. *Requires Go! Die Adapter