Keep your salads, fruits, vegetables, dips, fresh and cool throughout your party or picnic. Just fill the bottom of the tray with ice cubes or crushed ice and place the condiment trays above. The hinged cover lid keeps the contents cooler and fresher for longer and keeps unwanted bugs or dirt out. This crystal clear acrylic condiment is easy to clean and top rack dishwasher safe. Do not use in oven or microwave. Do not use with boiling water.