Finally an Irrigation Audition Cup designed with features that get the job done right, quickly and accurately. Self standing - easily anchors into turf, even on slopes. Measures sprinkler application in inches or centimeters. Unique design allows for shorter duration test. Made of durable polypropylene engineered plastic. 6" wide throat area provides improved catchment, particularly for close in watering. Can be stacked for easy storage. Each 12 Pack Kit comes with instructions.