This Yuasa 740-100 Quick Change Tool Post is a great addition to any metalworking shop. It comes complete with two tool holders, 740-101 and 740-104, and is in excellent condition, and comes with original boxes and instructions. The brown stuff you see on the tools is packing grease and will easily clean off. They don't look like been used much if at all. The brand is Yuasa, a well-known name in work holding equipment. It is perfect for those who want to save time and increase efficiency in their machining process. The tool post is compatible with a variety of lathes and is easy to install. The quick change feature allows for rapid tool changes, minimizing downtime and increasing productivity.