The EZ Pen Oiler makes oiling your machine’s bobbin race simple and precise. Just pull out the long spout, remove the cap, and give a gentle squeeze to place a drop of Handi Quilter-approved machine oil exactly where you need it. For full oiling instructions, check your User’s Manual. After each use, replace the cap but avoid pushing the spout back into the bottle to prevent contamination. If the oil becomes cloudy or discolored, discard it and refill with fresh HQ-approved oil. Handi Quilter recommends oiling the bobbin race every time you change the bobbin to keep your machine running smoothly.