Size M. I didn't use it much because my baby started rolling over quickly, so while it's a pillow where debris can easily get into the mesh, not much has gotten in, and I think it's in relatively good condition. It's also quite thick. There are no boxes or accessories. A donut-shaped baby pillow with a breathable mesh cover. - Color: White - Shape: Donut shape with hole - Material: Mesh fabric cover - Type: Baby pillow Baby pillow to prevent flat head, usable from newborns, breathable pillow, baby pillow, donut pillow, flat head prevention, head-turning habit, baby pillow, baby pillow, flat head, flat head prevention, flat head measures, flat head, 0 years old, mesh, baby shower gift, preparation for childbirth, giopillow Thank you for looking.