The Square 45/45/90° provides dimensions from every corner and with full millimetre distances for each side (which are noted on the Square). To ease the reading of dimensions there are etched surface arc's link the dimensions and include a mini reference arrow that indicates which shared corner the dimension starts from. The back edges of the square have a bevel to minimise ink smudging. Part of the Original Collection. A warm and tactile set of products made in the UK from European recyclable and carbon neutral MDF that gives a beautiful textured look to the surface. The markings are all etched in to ensure they cannot be worn away over time and the back face is painted black to allow the pieces to move around smoothly on notepads and drawing paper. 145 x 145 x 3mm