This bundle includes the following; 1- Saturn Gear Drive Sprinkler (Orbit part # 55069), 1- 1/2" Zinc Spike Base (Orbit part # 58034N) and 1- 1/2 inch X Close PVC riser (Orbit part # 38081). The Saturn is the #1 choice for medium area coverage sprinklers. It is easy-to-adjust coverage radius of 15-25 ft. and from 40-360 degrees with a simple flathead screwdriver. The Saturn gear drive has a 4" pop-up height and a whisper quiet operation. The Saturn gear drive is usually used in underground irrigation systems but when you pair it with the zinc spike base it becomes the ultimate, portable lawn sprinkler.