The Square 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.
Measurements
Square 60/30/90° measures 225 x 130 x 3mm
Square 45/45/90° measures 145 x 145 x 3mm
Square 30/40/50mm measures 40 x 30 x 3mm
NOTE The Square 30/40/50mm is a pocket product that uses the classic Pythagorean 3/4/5 triangle. Handy for quick right-angle checks. Due to the 3/4/5 triangle not having round numbers for either angle except the 90-degree corner these have not been included on the product.
Made in the UK.