Premium Quality: Crafted from premium chrome vanadium steel, our ratcheting combination wrenches are drop-forged and heat-treated for unparalleled durability. The mirror-polished and chrome-plated surface provides excellent resistance to corrosion and rust Comprehensive Set: This ratchet combination spanner set includes 12 high-quality wrenches in the most commonly used sizes - 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, and 19 mm. You'll always have the right size for any job Optimal Performance: With 72-tooth ratchet gears that require a mere 5-degree working swing arc, these wrenches are the ultimate mechanics hand tool. They are designed to meet the needs of professional automotive technicians and industrial users alike Easy to Use: Directional markings on the wrench surface make it easy to identify the direction, making daily use a breeze Convenient Storage: The set comes with a high-quality storage case with clear size markings for easy organization. The case makes it easy to store and transport the wrenches, so you can take them wherever the job takes you, Weight: 4.7178924068 pounds, Manufacturer: ‎‎LONGYOU YIYANG IMPORT AND EXPORT CO.,LTD