Features: Adjustable socket wrench, universal socket wrench can easily withstands high torques, firmly and correctly grasp all nut and bolts in its adjustable size ranges of 10-19mm. Easy to use, easy to handle large torques, firmly grasp, one hand operation. Wide ranges of adjustability: replace 3/8"to 3/4" and 10 to 19 mm sleeves. Application, immediate adjustment to hold most nut, screws, hook, square head screws, bolt heads, etc. Suitable for any standard 3/8inch drive wrench. Specifications: Material: Steel Type:Adjustable Wrench Socket,Adjustable Wrench Socket+Extension Rod,Adjustable Wrench Socket+Extension Rod (colored rod),Adjustable Wrench Socket+Extension Rod + Ratchet Wrench,Adjustable Wrench Socket+Extension Rod (colored rod) + Ratchet Wrench Package Includes: 1Set Adjustable Wrench Socket note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color.