GO! Cutting Mat by AccuQuilt. This 6Wx12H inch mat works with both the Go! Fabric Cutter and the GO! Baby Fabric Cutter (both sold separately). Compatible with 4-7/8 inch Triangle Die; 4-3/4 inch Square Die; 3-1/2 inch Diamond #1 Die; 5-1/4 inch Square Rag Edge Die; 5 inch Square Die (each sold separately). Specially formulated cutting mat that is part of the precision system that makes the AccuQuilt GO! Fabric Cutting System so efficient. Avoid extreme temperatures-intense heat or cold may cause mat damage or to become brittle. Keep out of direct sunlight. Imported.