Yunr 4 Pieces 100% Cotton Pink White Blue Polka Dot Duvet Cover Sets (Twin, 4pcs without comforter) Duvet cover is with hidden zipper ,can open it and put your comforter inside it . Imported Material:100%cotton, .40S, 210 thread count . Machine washable for easy care,Closure type, Hidden zipper. Twin size:flat Sheet: 230*250cm,duvet cover: 160*210cm,pillowcases:48*74cm 4pcs=1 flat sheet +1 duvet cover+2pillowcases NOTE:THIS ITEM DOES NOT INCLUDE ANY COMFORTER FILLER !