diff --git a/EgwCoreLib.BlazorTest/Pages/Test.razor b/EgwCoreLib.BlazorTest/Pages/Test.razor
index c3f01db..902c00f 100644
--- a/EgwCoreLib.BlazorTest/Pages/Test.razor
+++ b/EgwCoreLib.BlazorTest/Pages/Test.razor
@@ -8,16 +8,16 @@
 
 <div class="row bg-secondary py-2">
     <div class="col">
-        <StepArrow ObjId="123" StepText="Prova Arrow 01" BlockStyle="@($"fill: #123456;")" StrokeWidth="10" ObjW="650" ObjH="100" StrokeColors="@listBord01"></StepArrow>
+        <StepArrow ObjId="123" StepText="Prova Arrow 01" BlockStyle="@($"fill: #123456;")" StrokeWidth="4" ObjW="650" ObjH="100" StrokeColors="@listBord01" TipAngle="90"></StepArrow>
     </div>
     <div class="col">
-        <StepArrow ObjId="456" StepText="Prova Arrow 02" BlockStyle="@($"fill: #456789;")" StrokeWidth="10" ObjW="600" ObjH="100" StrokeColors="@listBord02"></StepArrow>
+        <StepArrow ObjId="456" StepText="Prova Arrow 02" BlockStyle="@($"fill: #456789;")" StrokeWidth="4" ObjW="600" ObjH="100" StrokeColors="@listBord02" TipAngle="60"></StepArrow>
     </div>
     <div class="col">
-        <StepArrow ObjId="456" StepText="Prova Arrow 03" BlockStyle="@($"fill: #6789AB;")" StrokeWidth="3" ObjW="500" ObjH="100" StrokeColors="@listBord01"></StepArrow>
+        <StepArrow ObjId="456" StepText="Prova Arrow 03" BlockStyle="@($"fill: #6789AB;")" StrokeWidth="4" ObjW="500" ObjH="100" StrokeColors="@listBord03" TipAngle="120"></StepArrow>
     </div>
     <div class="col">
-        <StepArrow ObjId="456" StepText="Prova Arrow 04" BlockStyle="@($"fill: #89ABCD;")" StrokeWidth="0" ObjW="700" ObjH="100"></StepArrow>
+        <StepArrow ObjId="456" StepText="Prova Arrow 04" BlockStyle="@($"fill: #89ABCD;")" StrokeWidth="0" ObjW="700" ObjH="100" TipAngle="108"></StepArrow>
     </div>
 </div>
 
@@ -42,10 +42,16 @@
         listBord02.Add("White");
         listBord02.Add("");
         listBord02.Add("White");
+        listBord03 = new();
+        listBord03.Add("");
+        listBord03.Add("White");
+        listBord03.Add("");
+        listBord03.Add("Blue");
 
     }
 
 
     protected List<string> listBord01 { get; set; } = new();
     protected List<string> listBord02 { get; set; } = new();
+    protected List<string> listBord03 { get; set; } = new();
 }
diff --git a/EgwCoreLib.Razor/StepArrow.razor.cs b/EgwCoreLib.Razor/StepArrow.razor.cs
index e927054..8eecb0b 100644
--- a/EgwCoreLib.Razor/StepArrow.razor.cs
+++ b/EgwCoreLib.Razor/StepArrow.razor.cs
@@ -34,7 +34,7 @@ namespace EgwCoreLib.Razor
         /// Angolo della freccia
         /// </summary>
         [Parameter]
-        public int SkewAngle { get; set; } = 36;
+        public int TipAngle { get; set; } = 108;
 
         /// <summary>
         /// Testo da mostrare
@@ -65,9 +65,17 @@ namespace EgwCoreLib.Razor
 
         #region Protected Properties
 
+        /// <summary>
+        /// Angolo in radianti
+        /// </summary>
+        protected double radAngle
+        {
+            get => TipAngle * (Math.PI / 180);
+        }
+
         protected int deltaX
         {
-            get => (int)Math.Round(rectH * Math.Sin(Math.PI * SkewAngle / 180), 0);
+            get => (int)Math.Round((rectH / 2) / Math.Tan(radAngle / 2), 0);
         }
 
         /// <summary>
@@ -82,10 +90,14 @@ namespace EgwCoreLib.Razor
                 if (StrokeColors.Count == 4)
                 {
                     var pList = pointList;
-                    lineList.Add($"{pList[0]} {pList[1]}", StrokeColors[0]);
-                    lineList.Add($"{pList[1]} {pList[2]} {pList[3]}", StrokeColors[1]);
-                    lineList.Add($"{pList[3]} {pList[4]}", StrokeColors[2]);
-                    lineList.Add($"{pList[4]} {pList[5]} {pList[0]}", StrokeColors[3]);
+                    if (!string.IsNullOrEmpty(StrokeColors[0]))
+                        lineList.Add($"{pList[0]} {pList[1]}", StrokeColors[0]);
+                    if (!string.IsNullOrEmpty(StrokeColors[1]))
+                        lineList.Add($"{pList[1]} {pList[2]} {pList[3]}", StrokeColors[1]);
+                    if (!string.IsNullOrEmpty(StrokeColors[2]))
+                        lineList.Add($"{pList[3]} {pList[4]}", StrokeColors[2]);
+                    if (!string.IsNullOrEmpty(StrokeColors[3]))
+                        lineList.Add($"{pList[4]} {pList[5]} {pList[0]}", StrokeColors[3]);
                 }
                 return lineList;
             }
@@ -101,12 +113,12 @@ namespace EgwCoreLib.Razor
             {
                 string[] pList = new string[6];
                 // aggiungo 1:1 i punti
-                pList[0] = "0,0";
-                pList[1] = $"{rectW - deltaX},0 ";
-                pList[2] = $"{rectW},{rectH / 2} ";
-                pList[3] = $"{rectW - deltaX},{rectH} ";
-                pList[4] = $"0,{rectH} ";
-                pList[5] = $"{deltaX},{rectH / 2} ";
+                pList[0] = $"{StrokeWidth},{StrokeWidth}";
+                pList[1] = $"{rectW - deltaX},{StrokeWidth}";
+                pList[2] = $"{rectW},{rectH / 2}";
+                pList[3] = $"{rectW - deltaX},{rectH}";
+                pList[4] = $"{StrokeWidth},{rectH}";
+                pList[5] = $"{deltaX},{rectH / 2}";
                 return pList;
             }
         }