Back side has plastic opening. Hard to see in pictures.

The Vintage 1990 The Simpsons 3 Piece Twin Sheet Set featuring characters like Homer, Bart, Marge, Lisa, and Maggie is a colorful and nostalgic addition to any kids' bedroom. Made of a comfortable blend of 70% polyester and 30% cotton, this sheet set is easy to care for with machine wash and tumble dry instructions. The set includes a flat sheet and two fitted sheets, all in a vintage/retro style that will appeal to fans of the classic cartoon series. Perfect for adding a touch of fun and whimsy to bedtime routines, this sheet set is a must-have for any Simpson enthusiast.