Feature: Protect your ring from scratch or abrasion. Great solution to your ring sizes problem. The superiority in concealment, when you use this ring adjuster,it's hard to find you are using it. You can use it as a glasses non-slip band,very multifunctional! Made from TPU,a kind of highly flexible rubber,better than PVC.More resilient,more flexible and more comfortable. Hypoallergenic material.No glue or any kind of chemical adhesive.Not gonna harm your skin. Four different sizes.Every size comes with 3 pcs.Almost suit for all kinds of rings. Spiral and flat design,make it more match with your ring and wrap your ring much better, and make your ring more comfortable and more fit. Type: Ring Size Adjuster, Material: TPU Colors:Clear Size: Please see photo,More detailed. Quantity:12Pcs. Note: Size for manual measurement, there may be a 0 to 2 cm error, belongs to the normal phenomenon. And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Set x Ring Size Adjusters. Includes: 3Pcs 1mm Ring Tightener , 3Pcs 2mm Ring Tightener , 3Pcs 3mm Ring Tightener , 3Pcs 4mm Ring Tightener .