It accept Type 1 blades to 31 1/2" (800mm). Two different optional washing jets available & optional tubing retainer strip holds tubing to the arm. Also with new "fold-back" feature & adjustable dual spring gallery. To set arms to 500mm the arms need to be cut off by 25mm.To set arms to 500mm the arms need to be cut off by 25mmAll 316 stainless steel components with brass attachment headsAll arms include adjustable spring mechanism in drive gallery & idler galleryArms can be folded back during boat cleaningStyled gallery covers for clean appearanceLow-glare black polyester epoxy coating over sandblasted stainless steel surface for durable finishAccept Type 1 blades to 31 1/2"Two different optional washing jets available EX2184 or EX2110Optional tubing retainer strip holds tubing to the armAccepts blades EX2171-EX2179, EX2195, EX2196, accepts heavy-duty blades EX216120-EX216124, tubing retainer strip EX2136.03Replacement callery cover EX2105.048Material: 316 Stainless SteelColor/Finish: Low-Glare Black Polyester Epoxy CoatingCompatible With: Type 1 Wiper SystemApplications: For Motors 223BS, 223BD, 235KK, 235KKHDTip Type: Adjustable