Compact design!!! This listing is for two diamond sharpeners! This is an essential item for anglers to sharpen their fishing hooks! One side is coated with diamond powder, and you can easily restore the hook point by simply sharpening the hook along the groove (*^▽^*) The back side is untreated, so it's safe even if it comes into contact with other fishing tackle. It comes with a chain, so it's convenient to keep it with other fishing accessories on a keychain or carabiner! You can quickly and efficiently use it without having to take it out of your tackle box! We recommend using this hook sharpener together with our other products, such as: "Stretchy Key Holder" and "Split Ring Opener" Product Specifications Color: Silver Material: Steel, Diamond powder (surface only) Size: 64mm x 19mm Weight: Approximately 10g