Swirls, the newest inspiration in Maxi-Lock's world of color, look great in a multitude of serging applications from home decorating to gifts, embellishments to quilting. Maxi-Lock Swirls look great in a multitude of serging applications from home decorating to gifts, embellishments to quilting. Wherever your creative inclinations take you, Swirls will add flavor to your finishing and decorating ideas. Maxi-Lock Swirls are available in 18 luscious colors. These 100% spun polyester threads coordinate beautifully with Maxi-Lock solids, with the same high quality performance.