1、Product Usage: The guitar neck shim is applied to change the angle of the bolt fixed guitar neck to make sure security. The guitar can be tilted at an accurate angle without creating cavitation, preventing wear and damage to the instrument base and neck. 2、Maple Wood: These guitar neck pads are made of solid maple wood, which is not easy to break and corrode, and can withstand daily use needs. Wooden shims have more resonance and stability, maintaining the natural sound of the guitar or bass. 3、Secure and Practical: With exquisite workmanship, these guitar neck shims have a rounded design, glossy appearance, no burrs or notches, effectively preventing scratches on your hands or damage to the instrument. You can use them with confidence. 4、Cone Specification: The 0.25 degree shim is tapered from 0.030in to 0.019in (0.76mm to 0.48mm). The 0.5 degree shim is tapered from 0.044in to 0.010in (1.11mm to 0.25mm). The 1 degree shim is tapered from 0.078in to 0.010in (1.98 mm to 0.25 mm). 5、How to Choose: 0.25 degree shim provides maximum versatility, and stacking them allows you to truly adjust the neck angle you want. 0.5 degree shim is the most commonly encountered. 1 degree shim is perfect for bass with a rear bridge. 6、Repair Tools: These neck shims are ideal tools for bass or guitar repair. Featuring very flexible structure that allows you to cut or polish according to your accurate needs, protecting your instrument from damage caused by incorrect angles. Item Type: Guitar Neck Shim Product Material: Maple Wood Application: Suitable for various types and brands of guitars, including electric, acoustic and bass guitar. 1 x 1 Degree Neck Shim 1 x 0.5 Degree Neck Shim 1 x 0.25 Degree Neck Shim