1、The product is made of high‑quality brass, stable and eco‑friendly, sturdy and durable. 2、Ruler grooves design, just move the ruler to the required scale and lock the screw, which is convenient and efficient to use. 3、Steel rulers with the width of the ruler surface within the scope of the screw expansion can be used. 4、Perfect tool for woodworking scribing and measuring, equipped with steel ruler for easy use. 5、Light weight and in small size, easy to store and carry, an important and practical accessory for professional work. 1 x Positioning Block1 x Applicable Steel Ruler Condition: 100% Brand NewItem Type: Steel Ruler Positioning BlockMaterial: BrassPurpose: Woodworking scribing and measuring positionerApplicable Steel Ruler Width: Approx. 26-30mm / 1- 1.2inDelivery Steel Ruler Range: 0-300mm / 0- 11.8in