Self-adjusting Function and Easy to UseThese adjustable spanners automatically fit all sizes of nuts or bolts, so that you don't need spend too much time adjusting the size of gripper. With self-locking function, you can operate it just by one hand, and it's not easy to slip when you use these grippers.3 Different Grippers for Various NeedsThese 2pcs auto-ratcheting wrenches have 3 grippers. These universal grippers are suitable for nuts or bolts whose diameters are from 6mm to 32mm. Large wrench: Size 23-32mm; Small wrench: Size 6-25mm and 9- 22mm .High-quality Material for DurabilityThey are made of high carbon steel, making these pipe monkey spanners have high toughness and hardness. With heat treatment and forging process, the torque of this self -adjustable wrench spanner set is pretty great.Non-Slip Handle and Portable Size The bi-material handles of the universal spanners are made of TPR. With ergonomic design, the handles are comfortable to hold and prevent slipping. Owing to the small volume, it's convenient for you to carry the quick snap wrench set anywhere.Wide ApplicationThey can also be used for various shapes, like square, hexagonal, triangle and so on. This gear-wrench set can work for nuts, bolts, pipes, taps, valves, woodworking, plumbing, carpentry, machinery and gardens, etc. These universal wrenches are also perfect for repair or replacement of kitchen, bathroom, carpentry or mechanic, car, auto, motorcycle, bike.