Features: 1. Made of quality steel with fine processing and precision machining, sturdy, tough, rust-proof and durable. 2. The sleek edge would not damage the bike chain and is good for smooth chain rotation. 3. High tensile strength up to 950 kgf, good for temporary use or repairing bike chain. 4. 5 pairs per pack, a good deal, necessary accessory for bike, 3 types to meet your needs. 5. Quick release link design, easy to use without tools. Specification: Material: Steel Color: Silver Tensile Strength: 950 kgf Options: for 8/7/6 Speed; 9 Speed; 10 Speed Quantity: 5 Pairs Weight: 16 g Product Size: 2.1 x 0.8 x 0.5 cm / 0.8 x 0.3 x 0.2 inches Package List: 5 Pairs of Bicycle Chain Links