The bowl contains a light ring that closes when you insert the correct amount of food so you don’t have to determine measurements. It’s pricey however at $250 to $300 today according to the batch you will get. Following March, it will likely achieve its whole price of $350. —Medea https://laboratorydevice31739.blogspothub.com/28418392/funny-office-gadgets-things-to-know-before-you-buy