This Wine Shield (Wine Preserva) 6 Pak comes with six wine preserving discs and an insertion fork. These recyclable discs, when inserted into an open bottle of wine, keep the wine at vintage quality for up to five days! It's a simple, easy, and safe system that has seen massive success in Australia, both in the hospitality industry and with wine enthusiasts. Discs are 2 7/8" in diameter. No imprinting options available. Imprinting not available.