Bike enthusiasts looking to shave weight and add some bling to your ride, these TC4 titanium brake bolts are where it's at! Made from genuine TC4 titanium alloy, these bolts are significantly lighter than steel while being just as strong - perfect for weight weenies trying to reduce every possible gram. The nitride coating isn't just for looks (though they do look amazing in gold, titanium, or rainbow finishes), it also adds hardness and corrosion resistance that stands up to all weather conditions. You have options too - get the 4-piece set for split hydraulic cylinders that work with Shimano M615, M675, and M785 brakes, or the 2-piece set for integrated hydraulic cylinders compatible with Shimano M7000, M8000, M9000, and M9020 systems. The machining quality is precise with clean threads that install smoothly without cross-threading. The weight savings might seem small, but when you're upgrading multiple components across your bike, it all adds up to a noticeably lighter and more responsive ride. Beyond the weight savings, titanium has this cool factor that steel just can't match, and the colored finishes let you add some personal style to your bike's appearance. The package is compact but well-protected, and you get exactly what's described. Installation is straightforward if you have basic bike maintenance skills - just make sure you torque them properly since titanium requires different torque values than steel. Whether you're building up a dream bike or just treating your current ride to some quality upgrades, these titanium bolts deliver performance and style that serious cyclists appreciate. Quality components that make a difference where it counts!