STAEDTLER ST Mars Oval Scale AS1212-2

Staedtler Mars Oval Scale Rules AS1212-2 Professional quality Made of white P.V.C Anti-glare finish makes the scales easy to read 300mm scales front: 1:1, 1:5, 1:10, 1:100 back: 1:20, 1:200, 1:50, 1:500