An invisible and safe ring size adjuster: Made of high-quality transparent TPU material that will not harm your skin. When in use, the ring adjuster is completely transparent. Whether you are attending a party or traveling outdoors, it will not easily fall off. We designed the transparent color to protect your privacy and you won't even feel it. Simple to use: fix a loose ring, perfectly fits the size of the loose ring, invisible jewelry size, suitable for making jewelry protection devices, shanks, washers, sizes, installers - spiral silicone fixing kits, you can adjust the tightness as needed. If it's too tight, just twist it onto the ring when wearing it, and then use scissors to cut it off where needed.