Title: Invisible Ring Adjustment Ring Material: Transparent PVC Size: Spiral: 1.2mm I.D. x 3mm Outer Diameter (Appx) Spiral: 3mm I.D. x 5mm Outer Diameter (Appx)" Function: Comfort - The flexible nature of the spiral adjuster allows your fingers to move flexibly and comfortably. Economical - spiral regulators are available in strip form. This limits waste when you decide how much you need. Durable - The flexible nature of the plastic allows the adjuster to bend easily as it moves, reducing breakage. / The unique spiral design does not accumulate water or dirt, keeping the product and your ring cleaner and more hygienic. " Accessories List: 6PCS Invisible Ring Adjustment Ring Additional Instructions: "Instructions for use 1. Choose the right spiral for your ring (smaller spirals will work for thinner rings and vice versa). 2. Wrap the spiral around the bottom of the ring. 3. Trim off excess. Note: The spiral ring adjuster can be used before or while wearing the ring.