Hey cyclists! Tired of paying shop fees for basic bike repairs? This Kigauru 4-piece tool kit has everything you need to handle common maintenance tasks yourself. The set includes a crank puller that safely removes square tapered cranks without damaging threads, a bottom bracket remover compatible with 20-tooth cartridge types, a chain breaker that works with 6-12 speed chains, and a freewheel remover for cassettes. Made from hardened carbon steel with oxidation treatment, these tools are built to last through years of use. The increased 9.5mm head diameter provides better grip and prevents slipping, while the uniform force design protects your bike components from damage. Perfect for mountain bikes, road bikes, folding bikes - you name it! Whether you're installing new components, doing routine maintenance, or handling trailside repairs, this compact kit has you covered. The tools work with standard wrenches or sockets, and they're essential for any serious cyclist's workshop. Stop depending on bike shops for simple jobs and take control of your bike maintenance with this professional-grade tool set that pays for itself after just a few uses!