1、* By elevating and angling the neck, these shims can give more adjustability to the bridge to make your guitar sound better. 2、* The shim set includes 3 thickness sizes: 0.2mm (4Pcs), 0.5mm (2Pcs) and 1mm (2Pcs), which are necessary Luthier Tools for Electric Guitar Bass Players. 3、* Made of high quality brass, it effectively protects your guitar from corrosion or damage, more solid and durable to use. Features: * By elevating and angling the neck, these shims can give more adjustability to the bridge to make your guitar sound better. * The shim set includes 3 thickness sizes: 0.2mm (4Pcs), 0.5mm (2Pcs) and 1mm (2Pcs), which are necessary Luthier Tools for Electric Guitar Bass Players. * Made of high quality brass, it effectively protects your guitar from corrosion or damage, more solid and durable to use. * Compact and lightweight, convenient to carry, and easy to install and replace. * The shims are designed to be widely suitable for most electric guitars and basses. Specifications: Model: MX0312D Material: Brass Color: Gold Thickness: 0.2mm / 0.5mm / 1mm Item Weight: 14g / 0.49oz Package Size: 6 * 8 * 1cm / 2.36 * 3.15 * 0.39in Package Weight: 15g / 0.53oz Package List: 4 * 0.2mm Shims 2 * 0.5mm Shims 2 * 1.0mm Shims 4 * 0.2mm Shims 2 * 0.5mm Shims 2 * 1.0mm Shims