One Pack Includes - 12 ring guards for loose rings, a silver polishing cloth, and instructions. There are two different sizes: 2 and 3 mm in diameter. Spacers have a hoop design and are made of soft TPU material. Adjusters reduce rings by two ring sizes at the most. Sizers fit both mens and womens ringsRing Sizers For Loose Rings Are Perfect - For those whose ring size fluctuates from season to season, or finger is a lot slimmer than knuckle. Ring guard is a must have for anyone who lost some weight, or simply bought the wrong size. Ring spacer is beneficial because it is easy to put on, is comfortable, and does not damage the ringSuper Easy To Use - Place the first hoop around the bottom of the ring and twist to secure. Wrap the spacer to form more loops. Use as many as you need. Cut off the excess. It can be easy to use too many hoops, making the ring tighter. Tightener is easy to apply, is completely invisible, and can even connect multiple ringsKeep Rings Safe & Secure - The ring adjuster for loose rings only temporarily changes the size, making ring smaller without resizing and damaging it. Jewelry ring size adjuster is a great choice for your wedding and engagement rings. With this ring resizer you can feel secure your rings will not slip off by accidentSafe For All Skin Types - Ring spacers are gentle and soft. They are perfect for those who has sensitive skin. They do not move around, hold water in, and do not irritate or rub your skin. Your rings will stay in place perfectly. Ring tightener for loose rings is comfortable and affordable alternative to having rings resized Note: The data are all measured manually, please allow 1-3cm error, due to the difference in light and display, there will be a certain color difference, the actual object received shall prevail.