Built-in Knife The built-in knife is stored inside the butter dish to keep it clean and tidy. Soft-touch handle provides comfortable grip.， Keep Your Butter Fresh The sealing ring is designed to stop the air outside to get in which will keep the butter fresh for longer time and prevent absorbing the smell from refrigerator .， Easy to scoop up &Easy to Scrape The curved ramps at both ends of the plastic butter holder help you easily scoop up butter.Just slide the knife up the ramps.And use the top of the ramp as a scraper to remove the the remaining butter and clean your knife.， Measurement Marks & Anti-slip bottom & Dishwasher Safe The scale lines on the tray can help you control the calorie intake and measure the butter dish you need. Anti-slip bottom will keep it steady during slicing. The Butter Container is dishwasher safe and easy to clean.， 90-Day Please be noticed that we provide 90-day on all of our products. Within 90 days after items received， if there is any problem with the items (quality， function， etc.)， please us. We re confident with the quality and function. If you re not happy with it， just send it back