Size: 8,9,10,11,12,13,14,17,19mm Features: 100% brand new and high quality. Made from chrome vanadium, dull polished for a matte finish, durable wrenches. 72 teeth ratchet ring, high torque capacity Professionally heated treatment for strength and durability. Chrome vanadium steel forging, gears,and jaw hardening heat treatment, hard wear-resistant. 72 Teeth drive technology, rotating 5 degrees can drive, facilitate to use in small space. Fixed Head Storage Rack is included(Easy to carry)(Portable to anywhere)(Greatly easy your life and working) Notice:when you drive tight screws, please use the open end rather than the end of ratcheting ring.