Features 1、CNC turning, rounded edges and rounded edges without scratching. CNC lathe, high‑precision processing and forming, more accurate core driving, no deviation in the center, automatic positioning depth. 2、The flower core rod adopts hardening heat treatment, high hardness, surface polishing process, it is not easy to be deformed after repeated knocks, and has a long service life. 3、The surface of the sleeve is sandblasted and non‑slip. After molding, the surface is polished and polished. Three‑dimensional sandblasting treatment, even if the hand is sweaty, the installation will not slip, and the surface also presents a fine metal texture. 4、304 stainless steel screws, use no rust, high accuracy, special screws are vulnerable parts, the use of replaceable solutions can greatly increase tool life. 5、Precise threads, firm connection, not easy to fall off. Great DIY replacement parts for bike. Item type: Sunflower Driving Tool Material: Aluminum alloy + stainless steel Color: As picture shown Sleeve Size: Approx. 10.8x3.5x3.5cm/4.3x1.4x1.4in Screw length: Approx. 3cm/1.2in Weight: Approx. 292g Applicable: Front fork with 28.6mm/1.1in outer diameter at the upper end (aluminum alloy, steel, titanium alloy front fork), full carbon fork is not applicable Features: heating and hard processing, polished nickel plating, three-dimensional sandblasting, good hand feeling, non-slip, 304 stainless steel special screws can be specially designed. Package List 1 x High hardness sleeve 1 x Flower core rod 1 x Special screw 1 x Sunflower