The Elephants 3 Piece Baby Crib Bedding Set includes fresh air crib liner, crib skirt and fitted sheet. The fresh air crib liner is 12 inches high and fits a standard size, 28 inch x 52 inch crib interior. It provides fresh air flow for a better sleep and keeps arms and legs inside crib. It's unique design keeps it in place for easy sheet changes and eliminates sagging. The crib skirt has a 14 inch drop and the fitted sheet is designed to fit a standard size 28 inch x 52 inch crib mattress. The shell of the crib liner is made of 100% cotton. The mesh is 90% nylon and 10% spandex. The platform is 65% polyester and 35% cotton. Filling is 100% polyester. The crib skirt drop is 100% cotton and the platform is 65% polyester and 35% cotton. The sheet is 100% cotton. Care instructions: machine wash cold in gentle cycle, use only NON-chlorine bleach when needed, tumble dry low. Crib Liner: close all zippers and fasteners before washing, do NOT wash with delicate fabrics, do NOT iron. Crib skirt can be cool ironed. Sheet can be warm ironed.