1 DURABLE BRASS: Made of excellent solid brass material, sturdy and durable to match the neck of the guitar or bass 2 INCREASE ADJUSTABILITY: These spacers do a great job of raising and adjusting the neck angle, allowing for more adjustability of bridge and helping to tailor the setup to your playing preferences 3 CORROSION RESISTANT: Guitar neck spacers are designed to fit most electric guitars and basses. Protect your favorite guitar from corrosion or damage 4 3 DIFFERENT THICKNESS: Guitar spacer set includes brass spacers in 3 thickness sizes, 4pcs 0.2mm, 2pcs 0.5mm, and 2pcs 1mm, you can choose as you need 5 NECESSARY LUTHIER TOOL: Guitar neck shim is a must have luthier tool for electric guitar bass players, and also suitable as a gift for your friends, family and music lovers

What's in the box
4 x 0.2mm Guitar Neck Shim Brass
2 x 0.5mm Guitar Neck Shim Brass
2 x 1mm Guitar Neck Shim Brass