Features: Brand new and high quality. 9pcs Guitar Set Under String T Shape Ruler, Suitable For Folk Guitar, Electric Guitar Or Bass. Made of stainless steel, with excellent rust resistance, it is durable and has a long working time. This set includes 9 kinds of radium size, the surface has been engraved with measurements. Suitable for guitar shop or string instrument shops. Specifications: Material: Stainless Steel Size: Radium: R7.25/9.5/10/12/14/15/16/17/20Height: 66mm Width: 70mm Color: Silver Note: There may be slight differences in the color tone of the pictures and the actual item. Please allow 1-2mm differs due to manual measurement, thanks. Package Included: 9 Pieces x T-Ray Guitar Rulers Securely packed in a bubble bag.