[Intended Use] A fixed pencil holder measuring, positioning and marking scribing tool specially designed for tape measure.[Multipurpose] Aid the measuring tape in drawing arcs circles and straight lines according to your needs.[Simple Installation] Follow the steps as shown in Fig. 4 to quickly attach it to the edge of the measure tape.[Material]measuring tape Made of high-quality material, oxidized surface to resist rust.[Compatibility] Suitable for most conventional tape measures, The three installation slots in the middle can be adjusted and installed according to the size of the tape measure.color:SilverMaterial:aluminumPackage Contents:1 x Pencil HolderOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.