Feature:1. High strength aluminum alloy material, stainless steel screw rod, detachable handle, CNC knurled design, flat thrust, multiple specifications, wide range of use, and strong versatility.2. The all aluminum alloy CNC handle, using new aluminum alloy materials, has a lighter weight, the detachable handle design guarantees strength and non slip, aluminum alloy joints.3. CNC exquisite turning, anodization, and fine threads, stainless steel screw rod, the total length of the screw rod is about 24.5cm/9.6in, the diameter is about 12mm/0.4in.4. The thread pitch is close and detailed, the strength is high, suitable for most head tube lengths, aluminum alloy, upper and lower clamp, the is anodized and has a high gloss, the pressure block design.5. The sinking table is designed to avoid crushing the bearing during installation, plane thrust bearing, the bearing uses lubricated balls, labor saving operation, not easy crooked, the reverse side is used to assemble the press in bottom bracket.Specification:Item Type: Bicycle Bottom Press ToolMaterial: Aluminum Alloy +304 Stainless SteelProduct Size: Approx. 26.8cm/10.5in Package List:1 x Press in Wrist Set Tool2 x AccessoriesNote:Planar thrust bearing, installation is labor‑saving, hold with both hands and slowly apply pressure to install, pay attention to observe whether the headset is tilted, match the adjustable wrench, step by step, it is recommended to install only one side each time.When installing the press‑in bottom bracket, adjust the position of the press block to the opposite side and hold it with both hands and slowly apply pressure to install. Pay attention to whether the bottom bracket is tilted to avoid crushing the bearing during installation.