1. The chain magic buckle pliers are a practical wrench tool that can be used to disassemble and install the quick-release magic buckle of bicycle chains. The chain buckles are made of steel, which are strong and durable and can meet long-term use needs. 2. This product is presented in a combined set form, with a variety of specifications available for selection, which can better adapt to different types of bicycle chains. The specific sets are as follows: One set includes one tool and 5 pairs of 6/7/8-speed chain buckles; one set includes one tool and 5 pairs of 9-speed chain buckles; one set includes one tool and 5 pairs of 10-speed chain buckles; one set includes one tool and 5 pairs of 11-speed chain buckles; one set includes one tool and 5 pairs of 12-speed chain buckles. No matter what the specification of your bicycle chain is, you can find a suitable set, which will bring convenience to the disassembly and installation of your bicycle chain. 3. Whether you are an amateur cyclist who maintains your bicycle daily or a professional bicycle repairman, these chain magic buckle pliers can be your useful assistants, making the disassembly and installation of chains easier and more efficient.