Work Surface - Self Healing - Double-Sided These professional grade, self-healing cutting mats provide ultimate protection for your work surfaces. They are ideal for crafting, sewing, rotary cutting and cropping photos. Self-healing 5 layer design for maximum durability 1/8" thick PVC construction protects work surface Screened measurement grid for easy sizing (top surface only) Screened inch, metric, and angled guides (top surface only) Surface material protects blades from becoming dull Mats can be used on both sides for versatility Available in Black or Crystal clear Available in 9" x 12" or 12" x 18" Tips: Designed for rotary and utility blades. Avoid direct contact with sunlight or extreme heat. Store flat. Clean with warm water and mild detergent. Rotate to avoid excessive wear in one area.