Milestone blankets are special blankets used to record the growth of babies. They are usually made of soft, skin-friendly materials, such as super soft and thick 250gsm 100% polyester machine washable flannel fleece, 100% cotton, etc.1. They come in a variety of sizes, with common sizes of 40*51 inches, 40*60 inches, 47x47 inches, etc. They are uniquely designed with numbers 1-12 and other logos printed on them, and may also have various cute patterns. Some will also come with felt frames, wooden rings, erasable cards, pens and other props. Every month after the baby is born, place the baby on the milestone blanket, place the attached leaf support frame on the "week" or "month" position, and place the sun support frame on the number corresponding to the baby's age, and then take a photo of the baby to record the baby's growth changes every month.