Easy to use Apply and rotate. A metal insert allows quick and easy rotation for replacement of connected supply line nuts or tap mounted nuts. Easily turn at awkward angles and without scratching your chrome. High Quality Material Features lightweight, high strength plastic construction and durable aluminum inserts. Remove the key head by a simple match, you can use it alone, compact and lightweight, very easy to carry. Universal use Notches in the plastic, on both sides, are for engagement with faucet nuts of different sizes. This faucet wrench sets and removes plastic sink and supply line nuts, as well as 7/8" and 2.5 hex nuts. sink The faucet and sink installation tool is a must have when replacing a faucet as it fits easily into that tight area When used correctly the tool has done what which it is supposed to do effectively.Suitable for supply nuts, shut-off valves, strainer baskets, nuts, faucet nuts, toilet bowls, sink, bathroom/bathroom kitchen, etc.