High-quality construction Ergonomic design Long-lasting durability, Weight: 1.6755131912 Pounds, Manufacturer: OLFA Whether you are new to crafting or a pro, you will appreciate this self healing rotary mat. Useful for all crafts, easily stored, but large enough for almost all projects. Olfas unique sandwich structure makes cutting easy. It not only protects your cutting surfaces, it protects the edges of rotary blades. The mats grid lines are designed for easy measuring and accurate cutting of straight lines and precise angles. Double sided, inch and centimetres.