4 Different Sizes: The double head design of bicycle hub wrench includes 13mm, 15mm, 14mm and 16mm, a total of 4 different sizes, which can be applied to 4 different sizes of nuts to meet your different needs. Convenient Design: Open Pedal Wrench Thickness: 2mm. This special key can be used flexibly in tight spaces. This axle hub cone wrench is designed to work with the hub for a comfortable grip: the front end of the hub cone wrench is designed with a lug. Comfortable grip, effort-saving, not slippery, allowing you to easily remove the bicycle hub Durable carbon steel material: The tapered keys are made of high-quality carbon steel, which is strong and durable for outdoor use. long-term use. What's more, it's lightweight and portable, so you can take it with you in the event of a riding emergency, solving your embarrassing bicycle repair tool: the bicycle hub cone wrench can be used to easily remove and install the nut on the bicycle axle. It is an indispensable tool in repair and car workshops. Size: 20*4cm