Patented NeWave Drip Trays with open, free-flowing design dissipates fluid spills evenly to allow quicker evaporation. NeWave pattern keeps mug, cup, and pitcher bases dryer by eliminating the common fluid traps on other designs. unique design, NSF listed. made of dishwasher safe styrene. NeWave pattern is easy to empty and clean. available in octagon or square and 4" or 6" sizes. colors: Black(03), Clear(07).