Measuring 35.5cm x 58.3cm (14 x 23 inches) with a white, the Tim Holtz Glass Media Surface Mat is a fantastic multi-functional tool for creating in your workspace. The 30.5cm x 35.5cm (12 x 14 inches) measuring grid features imperial and metric measurements, and the white 19cm x 27.9cm (7.5 x 11 inches) mixing palette area (complete with a durable, easy-clean non-stick mat) is ideal for preparing wet mediums.