Soleebee Mixed Random 18mm Aluminum Glass Snap Button Jewelry Charms DIY Accessories (Shell+Rose) The size of the snap fastener is 5.5mm and the diameter of button is 18mm. Theese snap buttons are made of high quingity aluminum, clear glass and resin, very charming! Our buttons are made of better material, nicer and brighter than any others. These snap buttons could be added to any snap button ring,snap button bracelet or snap button necklace, so you could enjoy 1 second diy jewlery fun at your own will; you also can add these buttons to your clothes, bags, belt, or wallet and so on. They will make your life more colorful and charming! Please do not hesitate to tell us if you need more snap buttons to DIY more personalized jewelry sets, we will help you find the ones you want. Because our fashional & nice buttons are various and distinctive, from soup to nuts. [PACKAGE included 12 x snap buttons.]