What is this?Used to adjust the height of the guitar saddle. The guitar saddle screws are very important guitar replacement. It is suitable for various electric guitar and bassWhat will I get?Guitar saddle screws, are in size of : M3 x 0.5, 8mm/0.31-inch thread lengthIn the package of: 12 x Guitar saddle screwsIs there any advantages of the product?Not easy to rust, durable, long service life; Simple installation and convenient use; Small size, light weight, easy to carryHow to use it?Steps of installation: 1. Select the guitar saddle screws with appropriate size; 2. Remove the guitar saddle screws to be replaced; 3. Installed on electric guitarWhat should I notice?Please pay attention to selecting the guitar saddle screws with appropriate size.