General description Made of high-quality carbon steel with electrophoresis treatment, this durable bicycle wrench is rust-proof and designed for long-lasting use. The non-slip handle ensures easy control and operation, making it an essential repair tool for cyclists. With multiple size keys available (15mm, 16mm, 17mm, 18mm), you can choose the right one according to your needs. Its lightweight and portable design makes it convenient to carry on your cycling adventures.