Material: made of plastic,digital clear, help fast accurate measurement
2 Pieces of large clear triangle rulers:One of the right-angle sides of the 45/90-degree ruler is 5.5 inches,and the beveled edge side is 7.8 inches;the 30-60 degree ruler has a longer bevel side of 9 inches long and the shorter right-angle side is 4.5 inches long
Middle hollow design: easy to pick up and hold with your hand,45/90-degree ruler can also be used as a protractor
Function: Suitable for students,teachers,engineers,designers,artists and so on.
