4 sizes to meet different ring needs Ideal for fingers with knuckle problems A more stylish and simple treatment Customize your ring the perfect right size How to Use 1 - Place the adjuster on the ring. 2 - Wrap the adjuster around the ring. 3 - Try to see if suitable and comfortable. 4 - Cut off the excess adjuster Invisible & Comfortable These coil ring resizers are made of Hi-Q soft TPU material. It’s transparent and so comfortable that you don't even realize they're there. Very affordable and easy way to fix a common annoying problem. warm prompt: 1.Sweat will corrode transparent plastic products, so it is recommended to change new clean products frequently to keep them clean 2.You may not be used to wearing it for the first time, but this feeling will disappear after two or three days.