Any plastic tub can be modified with paper towel fastened around the inner wall with double stick tape or glue. The lid can be modified by cutting out a larger hole and attaching netting with double stick tape. This allows monitoring of a developing chrysalis where a recently eclosed adult needs ~1-3 hours to dry its wings. Recommend placing container with adult inside a dark closet and retrieving prior to ideal outdoor conditions which should be ~55F or warmer starting in the morning.