The diameter of the indent is 25.4mm. It works perfectly with any of our 25mm laser cut cabochons. Great for magnets, jewelry-making, scrapbooking, and everything in between.

Apply cabochon to bottle caps then just place an epoxy sticker, pour clear resin or even just leave it natural. These make amazing: 

Centers for your bows
Key chains
Bottle cap brooches
Water bottle tags
Zipper pulls and so much more

10 Pieces.Two Sided Hot Pink - White Polka Dots Bottle Caps Flattened