1. High gear options: 22, 32 and 44 teeth are available to meet different speed and torque requirements and adapt to a variety of driving conditions and personal preferences.2. Two-speed design: 2x9-speed configuration means there are 18 speed combinations to choose from, providing riders with a wide range of speeds for both urban commuting and outdoor off-roading.3.Durable Material: Made of high quality steel to ensure the strength and durability of the chain, which can withstand long time and high intensity use.4. Precise sprocket hole diameter: the sprocket hole diameter is 104mm (32/44T) and 64mm (22T), which ensures a perfect fit with the chain, reducing wear and extending service life.5. Affordable Packaging: Each pack contains 3 pieces of the chain, which is not only easy to replace and maintain, but also affordable and suitable for bulk purchasing needs of families or teams.