Clover 329 Stitch Marking Rings are a useful and practical accessory for any knitting job. These strong, durable plastic rings are attached to the needle to help you remember important stitches in your project, such as round beginnings, stitch changes, increases and decreases. Two sizes are available, small and large, to accommodate different thicknesses of needles. The small pack includes 30 markers and the large pack includes 20 markers, which can be used on knitting needles, circular needles, or double pointed needles. They are easy to insert and remove and glide smoothly between the needles. The Clover 329 Stitch Marking Rings are an essential tool for any knitter.