diff --git a/src/Bullet3Collision/NarrowPhaseCollision/shared/b3Contact4Data.h b/src/Bullet3Collision/NarrowPhaseCollision/shared/b3Contact4Data.h
new file mode 100644
index 000000000..9be5067c8
--- /dev/null
+++ b/src/Bullet3Collision/NarrowPhaseCollision/shared/b3Contact4Data.h
@@ -0,0 +1,23 @@
+#ifndef B3_CONTACT4DATA_H
+#define B3_CONTACT4DATA_H
+
+#include "Bullet3Common/shared/b3Float4.h"
+
+typedef struct
+{
+	b3Float4	m_worldPos[4];
+	b3Float4	m_worldNormal;	//	w: m_nPoints
+	unsigned int  m_coeffs;
+	unsigned int m_batchIdx;
+
+	int m_bodyAPtrAndSignBit;//x:m_bodyAPtr, y:m_bodyBPtr
+	int m_bodyBPtrAndSignBit;
+
+	int	m_childIndexA;
+	int	m_childIndexB;
+	int m_unused1;
+	int m_unused2;
+
+} b3Contact4Data;
+
+#endif //B3_CONTACT4DATA_H
\ No newline at end of file