A. Package Content: You will receive 3 pieces of guitar neck shims, which are made of solid maple wood and have more resonance and stability than plastic, helping preserve the natural sound of your guitar or bass. B. Suitable Size: Our guitar neck shims have three dimensions (0.25, 0.5 and 1 degree). Each shim measures 55x75mm/2.17x2.95inch. The taper is 0.76 - 0.48mm/0.03 - 0.02inch for 0.25 degree shim, 0.71 - 0.2mm/0.03 - 0.008inch for 0.5 degree shim, and 1.52 - 0.25mm/0.06 - 0.01inch for 1 degree shim. C. Function: The shims for guitar neck are used to alter the angle at which bolts secure the guitar's neck for safety. Our product can tilt your guitar at a precise angle without creating air pockets, preventing wear and damage to the base and neck of your instrument. D. Perfect Restoration: Our guitar neck shims are a restoration tool for your bass or guitar. They have a flexible construction that allows you to cut or sand them to your needs, then use them to protect your instrument from damage when the angle is positioned incorrectly. E. Colour: Wood Color F. Material: Wood G. Package Contents: 3 * Guitar Neck Shims. Only the above package content is included, other products are not. H. Note: Light reflection and different displays may cause the color of the item in the picture to be a bit different from the real thing. The measurement allowed error is +/- 1 - 3cm.