3 Sizes: The size is 20mm/24.5mm/30mm and the inner diameter is 18.5mm/23.5mm/29mm. Each frame also has 2 holes in 0.6mm. They can meet your multiple size needs. Platinum and Golden: There are platinum and golden 2 colors for you 15pcs are in each color. And there are holes on the 2 sides that is convenient to add the accessories you like. 30Pcs Beads Frames: The package comes with 30 pcs brass bead frames. The amount is good for you to make necklace bracelet earring etc. Take on an entirely new look of your jewelry. DIY Friendly: The bead frames are pre-drilled with 0.6mm holes. You could easily craft cute beads in them. Expand your imaginary you could make angthing you want. Amazing Gift: Nothing will be better than the handmade present to show your love. You could send the crafts to friends family relatives or lovers on meaning days.