The Ambic Strip Cup is designed for mastitis detection and preventing contact with potentially mastitis-infected milk. Cup has wide 6-1/4" top diameter with a unique, snap-in anti-splash screen that allows user to identify discolored milk and clots of mastitis.... (read more) Screen is easily removed with thumb, eliminating cross contamination. Made of high quality, chemical resistant material for strength and durability. Easy to empty and clean. Blue and black. Holds approx 16 oz.