Product made of food grade stainless steel SUS304, BPA free. Consists of different compartment (3 sections or 5 sections). New lid design, convenient for food cover or dining out, please note this product is different from a lunchbox as the lid is not leak-proof. Compatible with silicone suction plate for table grip. (Silicone Suction Plate only included in Combo Sets.) Suitable for hot/warm food. Anti-bacterial material, easy to clean, durable product. Dish washer safe, please wash before using(please carefully read below washing guide). The tray and lid are NOT microwaveable. ONLY the tray is ok to put it on a boiling water. 3 compartment size: 260*130mm, weight 124g 5 compartment size: 270*195mm, weight 267g Country of Origin: Korea HOW TO CLEAN YOUR TRAY FIRST TIME: Using cooking oil, please wipe the tray gently until abrasives are all gone. Please put it in hot water with 2-3 scoops of citric acid, and leave it for 2 hours. Please wash the tray once more with neutral detergent and let it dry. Warning: Always use this product with adult supervision. Carefully clean the tray with a soft sponge to prevent scratches during cleaning. It may cause rust when exposed to moisture for a long time, so please dry the product immediately after cleaning. To prevent damage to the product, do not use acid, salt, chlorine bleach, abrasives, etc. If the product is cracked or deformed, stop using it immediately. This product is a tray, not a cooker, so avoid using the oven or microwave. The tray lid may be twisted due to the nature of the material and product type. Please close the lid carefully as it is made to increase the sealing effect and may be difficult to close it for the first few times. Unlike food containers, this product is not completely sealed. The food colour can be stained on the lid. Please read the information on the leaflet enclosed before use. Do not use on other purpose. Avoid direct sunlight or fire. Do not put the product in the oven or microwave.