Multi-functional two-in-one wrench, one wrench with two uses, open-end and box-end double-headed design wrench, for alternating use.

This wrench is very practical as it combines the functions of an open-end wrench and a box-end wrench. The open-end allows for quick adjustments, while the box-end provides a more secure grip. The double-headed design means you can easily switch between the two types of wrenches without having to carry multiple tools.