INNOVATION: Durable, high-quality silicone material is flexible and will not break if water freezes inside! CAPACITY: 7 inch capacity with 1/10 inch precision increments MOUNTING: Includes removable ground stake and brackets for post attachment. YEAR-ROUND USE: Weather-resistant materials for everyday use. MULTI-PURPOSE: Measure rainfall, track watering amounts for yards/gardens, and manage sprinkler system zone timing based on water collected for healthy grass.