Types: Square colander, square tray, round bowl (bonus) Materials: Polypropylene (square), stainless steel (bonus bowl) Compatible Heating Appliances: Microwave-safe (square only), dishwasher-safe (both) Made in Japan Sizes: Square colander/tray: 23.1cm length and width, 9.1cm height Bonus bowl: 21cm diameter, 7.5cm height In excellent condition with no noticeable stains, but please understand that this is a used item before purchasing. Product Details: Stack cut ingredients for a tidy cooking space. This is a set of a colander (strainer) and a tray. Shake them together for easy draining. You can drain water simply by covering the colander with the tray and shaking. Stack for easy draining. Simply stack them to quickly drain tofu or rinsed vegetables. Microwave-safe. Microwave-safe, so you can easily steam food. Notches for stable stacking. The notches provide stability when stacking. Protrusions to prevent slippage during draining. They provide stability when used together for draining, allowing you to effectively utilize kitchen space. Holes for hanging storage. There are holes on the edges for hanging storage. Nesting storage! Flat design fits in drawers. They nest for compact storage, saving storage space.