Purchased on Rakuten Ichiba in October 2025. I mainly used the moon (navy) and lemon patterns. Since my child didn't drool much, I only used them for a few hours each time when going out, about 6 or 7 times each. The moon (beige) was used about 2 or 3 times. The stone is unused, only rinsed with water. There are no noticeable stains on any of them, but some show slight wear from washing. Please refrain from purchasing if you are sensitive to used items, as these were used by a child. *Please check my profile for more information.