※ Possible typos and omissions ※ All items are as shown in the images. This is a bicycle chain cutter (chain tool) made by HOZAN. The model number is "C-302". This tool is used to push out the pins of a bicycle chain to cut and connect the chain. It features precision screw machining and a distinctive V-shaped handle that makes it easy to apply force. It is compatible with various types of chains, such as those found on general bicycles, single-speed bikes, and BMX bikes. It is a convenient mini size for portability and is also equipped with a loosening mechanism (a function to loosen the chain).