Features 1、High Hardness And Strength: High tensile steel plates are plated with nickel chrome and multi layer electroplating and anti rust treatment, the bike cassette has higher hardness and strength for longer service life. 2、Smooth Shifting: High accuracy gear ratio and deficient gear design, the freewheel cassette has smoother shifting, weight reduction with large holes, and strong compatibility. 3、Hollow And Lightweight: The hollow design can easily reduce the weight, make the riding lighter and smoother, and effectively relieve fatigue after long term riding. 4、Noise Free: The flywheel cassette rotates steadily without noise, ensuring a close connection with the bicycle hub and smooth operation when riding. 5、Wide Application: With 10 speed 11‑34T gear ratio, the bicycle cassette is compatible with 10 speed bicycles, and is suitable for road bicycle and folding bicycle. Item Type: Bike Cassette Material: Nickel Chrome Steel Product Color: As Pictures Shown Product Weight: Approx. 449g / 15.8oz Gear Ratio: 10 Speed 11-34T (11-13-15-17-19-21-23-25-28-34T) Application: Suitable for road bicycle and folding bicycle Package List 1 x Flywheel 2 x Tooth Piece 1 x Cassette Lockring