Nelson Metal Three-Arm Square Pattern Spray Whirling Sprinkler on Rezimar Wheel Base 50240 Coverage up to 45 ft. x 45 ft. Square pattern Metal head with 3 arms Rezimarbase, with wheels for easy mobility Metal easy swivel coupling with ergonomic grip Square spray pattern up to 45ft. x 45ft. Rezimar large weighted wheel base Ergonomic grips on base Metal ergo swivel coupling Metal 3-arm head 2-pound weight for stability