ITEM NAME:7'' Aluminium Alloy Right Angle Triangle Ruler for Industrial Measurement Description: 7-inch square; fits in pocket. Incorporates features of framing square, tri square, mitre square, and protractor square. Constructed of aluminum alloy. Square Ruler Material: aluminum alloy. Square Ruler Size: approx. 18*18*25cm. Specification: Material: Alloy Size: 18x18x25cm/ 7.08x7.08x9.84inch Color: As picture show Package Includes: 1 Piece Triangle Ruler.Incorporates features of framing square, tri square, mitre square, and protractor square. 1 Piece Triangle Ruler. Square Ruler Material: aluminum alloy. Square Ruler Size: approx. 18 18 25cm. Constructed of aluminum alloy.