Tulip Needle Company- Locking Stitch Markers. Tulip needle markers are user friendly knitting tools and available in an array of colors. These round-nose locking stitch markers are especially designed to not split the yarn while you easily pick up stitches. These are used as guides for increasing/decreasing stitches by being placed right on the stitches. Though they resist falling off, they are easy to put on and remove. This 4x2-1/2 inch package contains seven stitch markers. Comes in a variety of designs and colors. Imported.