This is a set of two leg warmers from petit main. I used these to protect my baby's knees during the crawling stage. They're also great for preventing scrapes on the floor and for keeping warm. The natural color makes them easy to match with any outfit, and the design is suitable for both boys and girls. 【Usage Period】 Left: Approximately 3 months (in relatively good condition) Right: Approximately 6 months (some signs of wear and tear, with white stains - see photos) They can still be used, so how about using them as spares? Please understand that these are used items and have been stored at home.