Our wonderful round shaped super sparkly Rhinstone Diamonds are sticky-backed. All you need to do it pull them off of the sheet and stick them to whatever you are adding bling to! Put them on your candle holders, cell phones, or anything you can think of. Each "diamond" is 1/8" thick by 1/4" in diameter or 6.4mm. Each sheet has about 504 pcs! Use in strips or cut individually.