Features 1、WEAR RESISTANT MATERIAL: The positioning triangular is made of A grade engineering plastics material, laser engraved on both sides, and wear resistant 2、ROBUST AND RELIABLE: Speed rafters square feet have a robust construction to ensure service life and reliability in a variety of operating conditions 3、SAFE AND INSULATED: Engineering plastic square ruler has perfect insulation properties to effectively prevent the conduction of current, thus enabling safe and accurate measurement 4、ACCURATE AND STABLE: The triangular ruler has a highly accurate measuring scale to ensure the accuracy of woodworking operations. Trust to deliver accurate results every time 5、WITH FITTINGS: Positioning triangular ruler equipped with screw, nut, slider, easy for you to install and use, complete accessories guarantee convenient operation Specification Item Type: Positioning Triangular Ruler Material: Engineering plastics Size: Approx. 45 x 30cm / 17.7 x 11.8in Specification: Half round type Package List 1 x Positioning Triangular Ruler 1 x Screw 1 x Nut 1 x Slider