Chain Link Specifications: The dimensions of each missing chain link are 20 x 8 millimeters (0.78 0.31 inches). Quality Material: Crafted from stainless steel material, the bike chain master link undergo precision processing, ensuring sturdiness, resistance to oxidation, and a long lifespan. Applicability: These master link for bicycle chain are designed for use with 8, 9, and 10-speed chains, making them suitable for 8, 9, and 10-speed bicycles. Ease of Use: The bicycle chain features a quick-release design, facilitating easy assembly and disassembly of the chain, allowing for repeated use. Its smooth edges prevent damage to the bicycle chain and promote smooth rotation. Versatile Use: These rust-resistant and durable bike chain replacement kit have a wide range of applications, making them ideal for temporary use or repairing bicycle chains, serving as an essential accessory for bicycles.