diff --git a/src/main/java/cactusServer/entities/Object.java b/src/main/java/cactusServer/entities/Object.java
index 20f9465..b8cab8e 100644
--- a/src/main/java/cactusServer/entities/Object.java
+++ b/src/main/java/cactusServer/entities/Object.java
@@ -1,6 +1,7 @@
 package cactusServer.entities;
 
 import org.ntlab.radishforandroidstudio.framework.model3D.Position3D;
+import org.ntlab.radishforandroidstudio.framework.model3D.Quaternion3D;
 import org.ntlab.radishforandroidstudio.framework.physics.AngularVelocity3D;
 import org.ntlab.radishforandroidstudio.framework.physics.Velocity3D;
 
@@ -13,7 +14,7 @@
 	private Position3D position;
 	private Velocity3D velocity;
 	private AngularVelocity3D angularVelocity;
-	private Angle angle;
+	private Quaternion3D angle;
 	private Attribute attribute;
 	private String model;
 
@@ -25,7 +26,7 @@
 		// JSONDecode���̌Ăяo���p
 	}
 
-	public Object(Position3D position, Velocity3D velocity, AngularVelocity3D angularVelocity, Angle angle,
+	public Object(Position3D position, Velocity3D velocity, AngularVelocity3D angularVelocity, Quaternion3D angle,
 			Attribute attribute, String model) {
 		setPosition(position);
 		setVelocity(velocity);
@@ -47,7 +48,7 @@
 		return angularVelocity;
 	}
 
-	public Angle getAngle() {
+	public Quaternion3D getAngle() {
 		return angle;
 	}
 	
@@ -71,7 +72,7 @@
 		this.angularVelocity = angularVelocity;
 	}
 
-	public void setAngle(Angle angle) {
+	public void setAngle(Quaternion3D angle) {
 		this.angle = angle;
 	}