The Super Chain Tool 13S by Topeak is a high-quality chain tool made from cast CrMo steel. It has a long service life and is suitable for single and multi-speed chains, including Campagnolo® hollow pin chains, up to 13 speed. The chain tool has a built-in clip to hold the tool pieces together, ensuring that they are always easily accessible.In addition to the chain tool, this product also includes a 4 and 5mm hex wrench, as well as a steel wire chain hook. The hardened steel construction of the tool ensures its durability and reliability.The Super Chain Tool 13S has a compact size, measuring 7.9 x 4.2 x 2.1 cm (3.1" x 1.65" x 0.8"), and weighs just 66g (2.33oz). It is a lightweight and portable tool that can easily be stored in your cycling bag or tool kit.This chain tool also comes with some added features that make it even more convenient to use. It has a chain hook holder, as well as a chain pin holder and chain pin breaker. These features allow for easy removal and installation of chain pins, making maintenance and repairs a breeze.Invest in the Super Chain Tool 13S by Topeak for a reliable and versatile chain tool that will assist you in maintaining and repairing your bike. Its high-quality construction and added features make it a must-have for any cyclist.