Eterra Skid Steer Wiper Kit - Great for Skid Steers! Comes with a powerful 12 Volt motor. Shaft is 1-1/2" long so it can be used on regular doors and forestry doors. Wiper Angle - 55 degrees which allows for a longer wiper to cover more area. Wiper Blade Length - 13-3/4". Wiper arm is adjustable from 11" - 15" long. This gives you an adjustable sweep of 21" - 24".