Hello Kitty flat sheet which is about 79" long by 54" wide (203 cm by 138 cm). It is an odd size: it is about 17 inches shorter in length, and 11 inches shorter in width than a typical twin sized flat sheet. It feels like 100% cotton, but it could be a cotton/polyester blend. There are cute light pink bows, hearts, and musical notes in the background which are be a little hard to see in the pictures. It is wrinkled in areas, especially around the edges. It has some thin spots, a tiny hole near the edge, and fold/crease lines along the edges.
But please contact me if you have any problems with your order.