brand new and high quality Features: Commonly Used: This product is a repair product. There are many types of hubs on the market. These 4 models sold are only more commonly used, but not applicable to all. Please understand. 4 Specifications: R1.45*6.2MM, R2.4*6.4MM, R2.4*7.8MM, R2.5*7.9MM. High-quality Material: Made of Aluminum Alloy, wear-resistant, good toughness, not easy to pop-out. After installation, grease should be filled inside the hub. Please Note: Please check whether our products are consistent with what you need before purchasing, so as not to be unusable after your purchase. Bike Ratchet Hub Cassette Pawl only,other accessories demo in the picture is not included. Specification: Material: Aluminum Alloy Optional Size: 01, 02, 03, 04 01 Size: app.0.145x0.62cm/0.06x0.24in 02 Size: app.0.24x0.64cm/0.09x0.25in 03 Size: app.0.24x0.78cm/0.09x0.31in 04 Size: app.0.25x0.79cm/0.10x0.31in Color: Silver Quantity: 3 Pcs Note: No retail package. Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package Contents: 3 Pcs x Bike Ratchet Hub Cassette Pawls