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 you preserve the natural sound of your guitar or bass. 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. Function: The shims for guitar neck are used to alter the angle which bolts secure the guitar's neck for safety. Our product can tilt your guitar at the precise angle without creating air pockets, preventing wear and damage to the base and neck of your instrument. Perfect Restoration: Our guitar neck shims are the perfect restoration tool for your bass or guitar. They have a very flexible construction that allows you to cut or sand them to your precise needs, then use them to protect your instrument from damage when the angle is positioned incorrectly. Colour:Wood Color Material:Wood Package Contents: 3 * Guitar Neck Shims Only 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.