- Made from durable, high-quality materials, this sprocket protector shield your crankset from damage and wear, effectively extending its lifespan. - Designed specifically for 42-tooth chainrings, it ensures a snug and secure fit, providing optimal protection during rides. - Dimensions: 9.6cm x 10.6cm. The protector not only safeguards your bike but also keeps your clothing clean from chain grease and protects against potential snags, enhancing safety and convenience while riding. - Effortless installation: This crank guard requires no special tools, allowing for quick and easy setup so you can get back on the road in no time. Use Scenarios: - Ideal for daily commuters who want to maintain their bike's performance while keeping their attire clean and grease-free. - Perfect for mountain bikers who face rugged terrains and need robust protection against the elements. - Great for leisure cyclists looking for an easy-to-install solution to prolong the life of their crankset and enhance their overall riding experience.