VALUE PACK: You will get 50pcs flat round rings bezel trays; Ideal for gluing on buttons, beads or anything else to create unique rings. Great DIY accessories for home jewellery making and hobbies PERFECT SIZE: about 0.67in/17mm inner diameter, 0.16~0.55in/(4~14mm) wide; tray: 0.47in/12mm. This one size fits all design saves you having to stock up on multiple sizes, saving you time, money and space ADJUSTABLE RING: These rings are adjustable to fit most ring sizes, so you don't have to worry about stocking up on multiple sizes. The diameter of each ring measures 1.7cm as standard but can expand and contract INSTRUCTIONS: Paste the lovely pattern in the tray, then cover with the clear glass cabochon, a unique ring will be finished. Or put suitable charms in the bezels(such as tiny pizza, candy, cake, fruit and some charms you like) NICE GIFTS: giving the jewelry rings set as a unique present to your loved ones - lover, girlfriend, wife, fiancee, mother, daughter, your friend, even yourself. Express your love to them and make them feel very special and charming just like the star