diff --git a/source/Trek-12/Models/De.cs b/source/Trek-12/Models/De.cs
new file mode 100644
index 0000000..0063d0c
--- /dev/null
+++ b/source/Trek-12/Models/De.cs
@@ -0,0 +1,41 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Models
+{
+    public class De
+    {
+        public int NbMin { get; private set; }
+
+        public int NbMax { get; private set; }
+
+        public int Nb { get; private set; }
+
+        public De(int nbmin)
+        {
+            if (nbmin < 0) nbmin = 0;
+            if (nbmin > 1) nbmin = 1;
+            NbMin = nbmin;
+            NbMax = nbmin + 5;
+        }
+
+        public De()
+        {
+            NbMin = 0;
+            NbMax = 5;
+        }
+
+        public override string ToString()
+        {
+            return $"Ce dé a pour valeur {Nb} et est entre {NbMin} et {NbMax}";
+        }
+
+        public void Lancer()
+        {
+            Nb = new Random().Next(NbMin, NbMax + 1);
+        }
+    }
+}
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