Item Type: Guitar Polishing Stone Material: Metal, Stainless Steel Package List 2 x Whetstone 1 x Pillow File 1PREMIUM MATERIAL: Made with premium metal and stainless steel, the guitar grinding stone ensures maximum durability, maintaining consistent hardness and grinding performance even after long term use. 2MULTIPLE USES: This sharpening stone can be used for polishing various items, including guitar strings, as well as for sharpening knives, scissors, gardening tools, and chisels, making it a versatile tool for all your needs. 3NON SLIP BASE: The guitar grinding stone is designed with non slip base that ensures stability and safety during use, while the ergonomic design provides maximum comfort and ease of use. 4EASY TO USE: This guitar polishing tool is easy to use as it only requires soaking the stone in water for five to ten minutes before use. 5CONVENIENT SIZE: The guitar polishing stone features a compact and convenient size design that is easy to store and carry around.