1:100 1/100 1:200 1/200 1:250 1/250 1:300 1/300 1:400 1/400 1:500 1/500 These are the 6 scales. Please note that this is a new, unused item, but it has been stored at home. Triangular scale 30cm drafting supplies reduction ruler for general use plastic special reduction scale large-scale architectural drawing