Universal fit: The set includes 8 ring adjusters in 8 different sizes. The ring insert is inserted into the ring to reduce the size so that the ring sits securely on your finger and you don't risk losing it. You can reduce the ring by 0.5-1 in size. Fits well for a ring width from 1-10 mm. Suitable for both men's and women's rings, even for large knuckles. Smart design: The ring adjuster is inserted into the ring and the clasp holds the adjuster securely on the ring. Invisible and transparent: The transparent material means that the insert is not visible and the beauty of the ring is not affected. Robust and comfortable: Made of soft silicone, which is robust and has good elasticity. Protects ring and finger: In addition, the ring insert can help with knuckle problems and prevent the skin from being pinched and you from losing the ring in, for example, soap and dishwater. Specifications: Color: transparent Size: 10.0 cm x 8.0 cm x 1.0 cm Material: plastic / resin The package contains: Ring adjuster, set of 8 in different sizes Note: Ring not included!