Features: It is compatible with most single valve faucets. [Tap Back Nut Wrench] This socket wrench can reach into awkward and inaccessible space behind sink to tighten or loosen the mounting nut on the faucet or the flexible supply pipe nut that attaches to the end of the faucet. [Tap Installation Wrench] This sink faucet wrench is suitable for installing or removing kitchen or bathroom sinks. It has long shaft, which can reach hard-to-reach places under your sink, suitable for small spaces. [Simple Usage] Place the wrench correctly and install it on the mounting nut. Then rotate wrench and tighten. The high-lever handle can be stored in the drawer or tool box. It is suitable for DIY plumbing projects. [Using Tips] Do not hold the interchangeable head downwards. Each adapter is marked with specifications. When using it, find the right adapter and insert the unnumbered end into the 13mm driver. The magnet in the driver will attract the adapter, easy to operate. Tips: The product may be updated constantly , Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Material: Metal colour: A-red / B-Black<br><br>Package Contents: 1 x Wrench 1 x Wrench Chuck 5 x Sockets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.