Self healing cutting mat. Reversible mat contrasts with all shades and colors of material Durable, self-healing cutting mat mends itself with each cut 45mm rotary cutter cuts through materials icluding multiple layers of fabric, paper, felt and vinyl Our highest grade, precision ground, stainless steel blades stay sharper longer Safer storage - sliding button retracts blade guard for use Symmetrical design works for right - or left - handed use.