- Multi-purpose tool for 12-speed direct-mount chainrings: this tool is designed for broad use and a multifunctional design, enabling convenient and efficient removal for all users of 12-speed direct-mount chainrings. - Durable construction: made from high-strength aluminum to ensure lasting rigidity and shape retention through frequent use, supporting reliable performance over time. - Protective and stabilizing design: features a double rubber ring that protects your crank from scratches and helps prevent wobble of the chainring, delivering a secure, snug fit during use. - Precise, user-friendly engineering: machined to exact dimensions for a perfect fit, enabling precise installation and removal without jamming or binding during operation. - Practical use scenarios: - In a bike shop or home workshop, service and upgrade 12-speed direct-mount chainrings on road or mountain bikes with ease. - Routine maintenance at home, cleanly removing and reinstalling chainrings to inspect wear or replace components without damaging crank or chainring. - Field maintenance during rides or races, quickly swapping or servicing chainrings while protecting crank surfaces and preventing wobble for a reliable fit.