Features • Easy Disassembly for Convenience: The design allows for quick and reusable chain disassembly, making it suitable for both mountain and road bikes • Durable Construction for Longevity: Crafted from high-quality 40MN material, these links are strong and reliable, ensuring long-lasting performance • Enhanced Protection for Performance: The main connector link is engineered to prevent hot cracking in cold weather, maintaining integrity during intense competitions • Ample Supply for All Needs: With 30 pieces included in the package, you have plenty of links for replacements, ensuring you're always prepared • Organized Storage Solution: Comes with a convenient storage box, making it easy to carry and access your roller chain links while preventing damage and loss Features: 1、EASY TO USE: This bicycle chain link is reusable for easy chain disassembly; suitable for mountain bikes and road bikes 2、 MATERIAL: The chain link links are made of excellent 40MN, very and strong for long time use 3、PROTECTION FUNCTION: The main connector link prevents hot cracking in cold weather due to intense heating and cooling during competition 4、30PCS IN TOTAL: The package contain a total of 30pcs, enough for you to replace and use, very convenient 5、WITH BOX: Equipped with a storage box for easy storage, portability and access, and also prevents damage and loss Specification: Item Type: Chain Master Link Roller Material: 40MN Package List: 30 x Chain Master Link Roller 1 x Storage Box Note: Before ordering the missing chainrings for these bikes, please check the width and model of your bike's speed chain. Package List 30 x Chain Master Link Roller 1 x Storage Box