Metal base with large wheels and flow through connector to enable multiple sprinklers in unison. The wheels make the sprinkler easy to move without turning the water off, just pull on the hose. Low pressure sprinkler reduces water consumption by up to 30%. Operates on extremely low water pressure, ideal for well or pump systems. Will not clog and is safe to use with hard or unfiltered water. Gentle even coverage up to 1900 sq ft (square foot). Rain/mist effect is gentle on plant seedlings or newly seeded lawns.