Features:_x000D_ _x000D_ Made of stainless steel material, practical and durable. _x000D_ Designed with locking nut for locking angle at any convenient position. _x000D_ Ruler and protractor 2 in 1 combination for easy measuring. _x000D_ Quick and easy to read the measurement with clearly display. _x000D_ Available in three size, meeting your different demands. _x000D_ _x000D_ Specification:_x000D_ Material: Stainless Steel_x000D_ Measurement Range: 0-180, 0-15cm / 0-5.91in_x000D_ Optional Size: 80 * 120mm / 3.14 * 4.72in, 120 * 150mm / 4.72 * 5.91in, 150 * 200mm / 5.91 * 7.87in_x000D_ Weight: 50-129g_x000D_ _x000D_ Package list:_x000D_ 1 * Protractor Ruler 1Made of stainless steel material, practical and durable. 2Designed with locking nut for locking angle at any convenient position. 3Ruler and protractor 2 in 1 combination for easy measuring. 4Quick and easy to read the measurement with clearly display. 5Available in three size, meeting your different demands.