diff --git a/include/cstrike/Interfaces/IVModelInfo.h b/include/cstrike/Interfaces/IVModelInfo.h
index 06b9234..1f4ca3a 100644
--- a/include/cstrike/Interfaces/IVModelInfo.h
+++ b/include/cstrike/Interfaces/IVModelInfo.h
@@ -17,7 +17,76 @@
 #define BONE_USED_BY_VERTEX_LOD7 0x20000
 #define BONE_USED_BY_BONE_MERGE	0x40000
 
-class studiohdr_t;
+struct mstudiobbox_t {
+	public:
+		inline const char* GetName() {
+			if (szhitboxnameindex == 0)
+				return nullptr;
+
+			return ((const char*)this) + szhitboxnameindex;
+		}
+
+		int bone;
+		int group;
+		Vector bbmin;
+		Vector bbmax;
+		int szhitboxnameindex;
+		int unused[8];
+};
+
+struct mstudiohitboxset_t {
+	public:
+		inline const char* GetName() {
+			return ((const char*)this) + sznameindex;
+		}
+
+		inline mstudiobbox_t* GetHitbox(int i) const {
+			return (mstudiobbox_t*)(((unsigned char*)this) + hitboxindex) + i;
+		};
+
+		int sznameindex;
+		int	numhitboxes;
+		int	hitboxindex;
+};
+
+class studiohdr_t {
+	public:
+		inline const mstudiohitboxset_t* GetHitboxSet(int i) {
+			if (i > numhitboxsets)
+				return nullptr;
+
+			return (const mstudiohitboxset_t*)((unsigned char*)this + hitboxsetindex) + i;
+		}
+
+		int id;
+		int version;
+		long checksum;
+		char szName[64];
+		int length;
+		Vector vecEyePos;
+		Vector vecIllumPos;
+		Vector vecHullMin;
+		Vector vecHullMax;
+		Vector vecBBMin;
+		Vector vecBBMax;
+		int flags;
+		int numBones;
+		int indexBones;
+		int numbonecontrollers;
+		int bonecontrollerindex;
+		int numhitboxsets;
+		int hitboxsetindex;
+		int numlocalanim;
+		int localanimindex;
+		int numlocalseq;
+		int localseqindex;
+		int activitylistversion;
+		int eventsindexed;
+		int numtextures;
+		int textureindex;
+};
+
+class model_t;
 
 class IVModelInfoClient {
 	public: