The Linex Triangular Scale Ruler is meticulously engineered to guarantee it is as accurate and precise as possible, so it won\'t let you down then you need it most. It features six different scales so you have a much easier time drawing out your designs with various measurements. The grooves are coloured providing you with an easier way to let you know you have the correct scale measurement selected thus preventing mistakes and heart ache down the line. The triangular rule comes shipped in a protective plastic sheath. - Material: Plastic - Colour: White - 6 different measurement scales - Comes with protective plastic sheath