diff --git a/libs/xassets/xgfxbrushmodelwritable.h b/libs/xassets/xgfxbrushmodelwritable.h
new file mode 100644
index 0000000..f7f2400
--- /dev/null
+++ b/libs/xassets/xgfxbrushmodelwritable.h
@@ -0,0 +1,22 @@
+#ifndef XGFXBRUSHMODELWRITABLE_H
+#define XGFXBRUSHMODELWRITABLE_H
+
+#include "xasset.h"
+
+#include <QVector3D>
+
+class XGfxBrushModelWritable : public XAsset
+{
+public:
+    XGfxBrushModelWritable();
+    ~XGfxBrushModelWritable();
+
+    virtual void ParseData(QDataStream* aStream) override;
+    virtual void Clear() override;
+
+private:
+    QVector3D mMins;
+    QVector3D mMaxs;
+};
+
+#endif // XGFXBRUSHMODELWRITABLE_H