Cool Blingz Crystal Rhinestone Screw Caps Covers for License Plate Frame Bling made with Swarovski Crystals Chrome colored hard plastic screw caps embellished with a 48ss/11mm Swarovski crystal on each. Compatible with screws that have a round head of 11mm or less in diameter. Listing is for one set of four bling screw caps. Custom handmade to order item usually ships within 1 business day. Ships from USA. Withstands weather and car washes.