diff --git a/Sources/SwiftMath/MathBundle/MathTable.swift b/Sources/SwiftMath/MathBundle/MathTable.swift
index 0f8a604..1c2028f 100644
--- a/Sources/SwiftMath/MathBundle/MathTable.swift
+++ b/Sources/SwiftMath/MathBundle/MathTable.swift
@@ -8,23 +8,6 @@
 import Foundation
 import CoreText
 
-// struct GlyphPart {
-//     /// The glyph that represents this part
-//     var glyph: CGGlyph!
-// 
-//     /// Full advance width/height for this part, in the direction of the extension in points.
-//     var fullAdvance: CGFloat = 0
-// 
-//     /// Advance width/ height of the straight bar connector material at the beginning of the glyph in points.
-//     var startConnectorLength: CGFloat = 0
-// 
-//     /// Advance width/ height of the straight bar connector material at the end of the glyph in points.
-//     var endConnectorLength: CGFloat = 0
-// 
-//     /// If this part is an extender. If set, the part can be skipped or repeated.
-//     var isExtender: Bool = false
-// }
-
 /** This class represents the Math table of an open type font.
  
  The math table is documented here: https://www.microsoft.com/typography/otspec/math.htm
@@ -306,3 +289,22 @@ internal struct MathTable {
     }
 
 }
+extension MathTable {
+    
+    struct GlyphPart {
+        /// The glyph that represents this part
+        var glyph: CGGlyph!
+
+        /// Full advance width/height for this part, in the direction of the extension in points.
+        var fullAdvance: CGFloat = 0
+
+        /// Advance width/ height of the straight bar connector material at the beginning of the glyph in points.
+        var startConnectorLength: CGFloat = 0
+
+        /// Advance width/ height of the straight bar connector material at the end of the glyph in points.
+        var endConnectorLength: CGFloat = 0
+
+        /// If this part is an extender. If set, the part can be skipped or repeated.
+        var isExtender: Bool = false
+    }
+}