5mm.squares, within a 2 x 2 block, forming a 10mm square with a thicker lines
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Useful for finding the centre of your work..
These make excellant lightweight worksurfaces, ideal for taking to workshops. They are safe to us with tissue blades, which will neither damage the mat, or blunt the blades, as is the case with glass, or ceramic surfaces. Exception to this would be using the pointed corner of the tissue blade, this is likely to pierce the surface. And they are clay safe