This is the hands-free feeding product, "Mama Daiko Milk-ya-san" (Surrogate Mom Milk Shop). It acts as an assistant to help mothers who are working hard with childcare. This is a cushion for baby bottles that allows for hands-free feeding, supporting mothers of twins, triplets, and those raising children close in age with feeding. It also acts as a pinch hitter when the mother is not feeling well. It's an item that's useful to have on hand for emergencies. Babies can drink milk at their own pace. I purchased this as a set with "Oyasumi Tamago" (Good Night Egg), but I didn't use this item, so I am selling it. Thank you very much.