Feature: 1. Durable engineering plastic, high hardness, impact resistance, strong and durable, easy to carry. 2. Right angle positioning ruler includes 45° and 22.5° markings for convenient angle measurement. 3. Clear scale markings, wear-resistant surface, enables quick measurement and accurate reading. 4. Simple design, easy to use, high accuracy, suitable for a wide range of applications. 5. Practical marking aid tool ideal for woodworking projects and DIY enthusiasts. Specification: Item Type: Angle Ruler Material: Engineering Plastics Color: As shown in pictures Product Size: Approx. 8 cm (3 in) Weight: Approx. 220 g (7.8 oz) Purpose: Carpenter's right angle positioning, angle fixing ruler Package List: 10 x 90° Angle Ruler