Cricut Self-Healing Cutting Mat (30x30cm); Durable, extra-thick 12” x 12” (30.5 cm x 30.5 cm) mat with self-healing surface; Double-sided with large, easy-to-read numbers on wide 1” border; Not for use in Cricut machines; 12” x 12” (30.5 cm x 30.5 cm) reference marks match Cricut machine mat size