If there is any Quality problem,pls contact me before leaving feedback,I will solve the problem for U

Warranty and Return policy:
1 year warranty

Made of 6061-T6 Aluminum Alloy, CNC Machined and Polished&Anodized surface

Upper Diameter: 44mm x 30mm- Semi-Integrated (ZS)

Bottom Diameter: 44mm x 40mm- External Cup (EC)

Steer tube size: Upper: 1 1/8", Bottom: 1 1/2"
U can install 1 1/2" Tapered steer tube fork into 44mm headtube frame with this headset
2 Sealed Cartridge Bearings