Features: 100% brand new and high quality The socket is easy to hold and remove damaged, worn and rusted nuts and bolts. It is suitable for all kinds of professional maintenance and household maintenance.It is used in automobile maintenance, tire maintenance and mechanical maintenance. A variety of sleeve models, for the disassembly and assembly of various nuts and screws. Hold the nut and bolt tightly for easy one-handed operation. suitable for 10-19mm. Maintain a uniform force on all sides of the fastener to prevent rounding. Package Includes: 1 Set 10-19mm Universal Sleeve Assembly Specifications: Material:45 Steel Color: Silver 3 / 8 Extension Length: 5x 0.95cm/1.97x0.37inches Adjustable Sleeve Size: 2.2x5.3x3.7cm/0.87x2.09x1.46inches note: Please allow 0-3mm errors due to manual measurement, make sure that you do not mind before you order.