High-concerned chemical: None - This professional-grade socket adapter set is crafted without any high-concerned chemicals, ensuring a safer and more environmentally friendly tool option for mechanics and DIY enthusiasts. Material: Metal - Constructed from durable metal, this socket adapter set is designed to withstand the rigors of frequent use in car repair, making it a reliable choice for both professional mechanics and home garage setups. Type: Combination - Offering versatility and convenience, this combination set includes various sizes and types of ball tip socket adapters, making it ideal for reaching tight spaces in auto repair scenarios. Application: Car Repair Tool - Specifically engineered for car repair, this set is perfect for mechanics who need precision and reliability when working in confined spaces or on complex automotive projects. Origin: Mainland China - Proudly manufactured in Mainland China, this tool set adheres to strict quality standards, ensuring top performance and durability for all types of metalworking projects. Description/Features: Experience enhanced efficiency with our Professional 9 Piece Ball End Socket Extension Bar Set, crafted from high-quality chrome vanadium steel for superior torque transmission and extended durability. Designed for precision mechanical tasks, this set features a swivel head design with a hexagonal drive socket, offering unparalleled flexibility to navigate tight engine compartments and confined workspaces with ease. It's an indispensable tool for automotive technicians, industrial maintenance professionals, and DIY enthusiasts who demand a reliable torque tool for complex assembly and disassembly operations. Ideal for use in automotive repair shops, motorcycle maintenance, industrial equipment servicing, and home garage projects, this set tackles stubborn bolts in cramped spaces effortlessly. The heat-treated chrome vanadium alloy construction not only meets rigorous specifications but also provides a sli