Ceracell Round Comb Double Decker Frame Refill KitKeep your round comb supers producing season after season. This refill kit restocks the consumable parts of a Ceracell double decker round comb setup the rings, covers, and foundation so you can run the same frames and box again next year. Works with both Ceracell and Ross Round systems. What's in the kit 64 white round rings 32 opaque covers + 32 clear covers 8 sheets of thin (wireless) surplus foundation How it works Snap fresh rings around new thin