diff --git a/src/lib.rs b/src/lib.rs
index b6afd85..f17ca40 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -238,10 +238,9 @@ struct VmcExtBonePos {
 
 impl MessageBehavior for VmcExtBonePos {
     fn to_sendable_osc_message(&self) -> OscMessage {
-        let addr = String::from("/VMC/Ext/Bone/Pos");
         let quat = self.transform.basis.to_quat();
         return OscMessage {
-            addr,
+            addr: String::from("/VMC/Ext/Bone/Pos"),
             args: vec![
                 OscType::from(self.name.to_owned()),
                 OscType::from(self.transform.origin.x),
@@ -304,3 +303,36 @@ impl MessageBehavior for VmcExtBonePos {
         });
     }
 }
+
+struct VmcExtBlendVal {
+    name: String,
+    value: f32,
+}
+
+impl MessageBehavior for VmcExtBlendVal {
+    fn to_sendable_osc_message(&self) -> OscMessage {
+        return OscMessage {
+            addr: String::from("/VMC/Ext/Blend/Val"),
+            args: vec![
+                OscType::from(self.name.to_owned()),
+                OscType::from(self.value),
+            ],
+        };
+    }
+    fn parse_from_osc_message(msg: OscMessage) -> Result<Self, String> {
+        let name: String;
+        let value: f32;
+        if msg.args.len() != 2 {
+            return Err(String::from("arg count invalid"));
+        }
+        match &msg.args[0] {
+            OscType::String(s) => name = s.to_owned(),
+            _ => return Err(String::from("arg type invalid")),
+        }
+        match msg.args[1] {
+            OscType::Float(f) => value = f,
+            _ => return Err(String::from("arg type invalid")),
+        }
+        return Ok(VmcExtBlendVal { name, value });
+    }
+}