YutaoZ 8pcs Comforter Clips, Comforter Grippers, Bed Duvet Donuts Holders.keep Comforter in Place,Without Harming the Fabric Prevent Bunching & Shifting of Comforters and Duvets. Make comforters and flat sheet fit more closely Fits duvets and comforters not thicker than 1 inch. Easy to install