1. Package Content: You will receive 3 pieces of guitar neck shims. These shims are made of solid maple wood, which may have more resonance and stability than plastic, helping preserve the natural sound of your guitar or bass. 2. Suitable Size: Our guitar neck shims come in 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 the 0.25 - degree shim, 0.71 - 0.2mm/0.03 - 0.008inch for the 0.5 - degree shim, and 1.52 - 0.25mm/0.06 - 0.01inch for the 1 - degree shim. 3. Function: The shims for the guitar neck are used to alter the angle at which the bolts secure the guitar's neck for safety. Our product can tilt your guitar at a precise angle without creating air pockets, which may prevent wear and damage to the base and neck of your instrument. 4. Restoration: Our guitar neck shims can be a useful restoration tool for your bass or guitar. They have a flexible construction that allows you to cut or sand them according to your needs, and then use them to protect your instrument from damage when the angle is positioned incorrectly. 5. Colour: Wood Color 6. Material: Wood 7. Package Contents: 3 * Guitar Neck Shims. Only the above - mentioned package content is included, and other products are not. 8. Note: Light reflection and different displays may cause the color of the item in the picture to be a little different from the real thing. The measurement error is allowed to be +/- 1 - 3cm.