Materials: Hardened and tempered carbon steel construction for durability, rust resistance and sturdiness. Black powder coat finish adds corrosion resistance.High-efficiency function: high-strength handle, smooth adjustment, no falling. With the right length, adding torque and giving you a comfortable grip, it's a great accessory for removing bike pedals.Quick special tool: Just loosen and tighten the cone on the bicycle wheel for precise and smooth adjustment of the fastening element. The special wrench has a thinner design and is a professional tool for fixing the hub.PERFECT SIZE: The length of the key is about 23 cm. The 4-in-1 Cone Wrench comes in 4 sizes, double open end, 13 or 15mm on one side and 14 or 16mm on the other. Each wrench fits 13, 14, 15 and 16 mm and can be used for different nuts.Applicable scene: It is convenient to disassemble and install the nut on the bicycle axle. It is a must-have tool for auto repairs and dealers. It can be used on the rear hub of the pedal and is an essential tool for removing pedals when riding outdoors.describe1. There are 4 sizes of double open ends (13mm, 14mm, 15mm, 16mm), which can be applied to different nut sizes.2. The bicycle hub wrench conforms to the ergonomic arc, with good hand feel, comfortable grip, labor saving, and not easy to slip.3. An essential tool for removing wheels when riding outdoors. It's also ideal for any home bike mechanic. SpecificationMaterial: carbon steelColour: Blackpackage includes2 x bicycle hub wrenchKind tips:1. Package content: only the above package content, excluding other products.2. The size is measured by hand, please allow 1-3 cm measurement error.3. Due to different displays and lighting effects, the actual color of the item may be slightly different from the color shown in the picture.