{"product_id":"staedtler-561-98-1bk-mars-triangular-reduction-scale-ruler-version-1","title":"Staedtler Mars Triangular Scale Ruler Version 1 561 98-1BK","description":"\u003ch2\u003eSix Building Plan Scales On One Triangular Ruler\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eStaedtler Mars 561 98-1BK is version 1 of the Mars triangular reduction scale ruler, carrying 1:20, 1:25, 1:50, 1:75, 1:100 and 1:125 on its three faces.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eThat group of ratios runs from close-up detail work at 1:20 out to whole-floor layouts at 1:125, which is why version 1 tends to sit on the desks of architecture and building design students. Turn the ruler to the next face and you read straight off the drawing in real-world units, with no mental arithmetic between scales.\u003c\/p\u003e\u003cp\u003eStaedtler mould the 561 from solid white plastic and colour the grooves between the faces so each scale is quick to find. The ruler comes on a hangable blistercard that prints the six ratios on the front, and Staedtler state it is made in Germany.\u003c\/p\u003e\u003cp\u003eWorking at site or survey scales instead? Version 4 runs from 1:100 to 1:500, while the DIN version reaches down to 1:2.5 for detail drawings.\u003c\/p\u003e\u003cp\u003eMore in \u003ca href=\"\/collections\/scale-rulers\"\u003escale rulers\u003c\/a\u003e, \u003ca href=\"\/collections\/rulers-geometry\"\u003erulers and geometry\u003c\/a\u003e, \u003ca href=\"\/collections\/staedtler-geometry-tools\"\u003eStaedtler geometry tools\u003c\/a\u003e and \u003ca href=\"\/collections\/staedtler\"\u003eStaedtler\u003c\/a\u003e.\u003c\/p\u003e","brand":"Staedtler","offers":[{"title":"Default Title","offer_id":50552587452672,"sku":"SR561 98-1BK","price":21.22,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0863\/5419\/8784\/files\/Staedtler_Mars_561_Scale_Ruler_Version_1_561-98-1BK_1_Mega_Office_Supplies.jpg?v=1791400379","url":"https:\/\/megaschoolsupplies.com.au\/products\/staedtler-561-98-1bk-mars-triangular-reduction-scale-ruler-version-1","provider":"Mega School Supplies","version":"1.0","type":"link"}