Three Speed Temperature: The food warmers for parties has 3 levels (140 F/175 F/215 F), which can achieve fast and full surface heating within 30 seconds(Note:the surface temperature is high during the heating process, please do not touch it directly) Unique Timer Mode: The food warmer with 3-level timer function (1h/2h/4h) can set the desired duration to keep the food warm or meet other heating needs, up to 4 hours. When the timer ends, it will stop heating Anti Touch Locking Function: The electric warming trays has a locking function to prevent accidental touch (press and hold for 3 seconds to activate the locking function, press and hold for 3 seconds to disable the locking function) Easy to Clean: The silicone electric tray for food is made of food grade flexible silicone, which is very easy to clean. You can use a soft damp cloth dipped in mild detergent to wipe until it is clean (Do not use corrosive liquids to wipe the product) Can Be Rolled For Easy Storage: Food heaters can be rolled up and easily placed in a bag for easy carrying and compact storage space.