The ForeverYoung Extra Large diamond painting trays with lids ＆ stand offer an all-in-one solution for sorting, organizing, and preventing spills. Each diamond art tray features stop-edges for longer diamond, plus high side walls and lid to avoid spills even if dropped. Made from PP material. The included diamond art storage containers rack can sit on a desk or be wall-mounted to save space. A perfect addition to your diamond art accessories, diamond painting tools, and diamond art accessories.