Package Included: you will receive a bottle of UV glue, a mini UV light and a silicone clip; This set of tools can shrink the ring to any size. Easy to Use: first, drip slowly from the mouth of the glue bottle onto the inner surface of the ring, and rotate the ring slowly to ensure even distribution inside the ring for enhancing wearing comfort; Then, secure ring with silicone clip; Finally, expose the glue with UV lamp for about 1-3 minutes. Adjustable Thickness: by controlling the thickness of the glue, make the ring smaller to any size you want; You can enjoy a tailored fit for every ring in your collection, promoting both comfort and confidence. Safe for Skin: UV glue is made of resin, which is safe for the skin, odorless, waterproof; The glue sticks to the inner wall of the ring, which is very firm and invisible; You can be worn at any time even when bathing or swimming. Easy to Removal: when you need to remove the ring adjuster, it's just as easy; Gently pry it open with a plastic tool, and it will come off smoothly without leaving residue or causing damage to your precious rings. Notes:Please keep the products out of reach of little ones. Colour:As Shown Material:Plastic Size: Bottle of UV glue:about 1.2 x 4.13 inches/3 x 10.5 cm, 30g Mini UV light:about 3.82 x 1.34 inches/9.7 x 3.4 cm Silicone clip:about 0.94 x 1.34 inches/2.4 x 3.4 cm Package Contents: 1bottle * UV glue 1 * Mini UV light 1 * USB cable 1 * Silicone clip Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.