objects/hot3d/computer_mouse/computer_mouse.urdf

<?xml version="1.0"?>
<robot name="computer_mouse">
  <link name="base_link">
    <visual>
      <origin xyz="0 0 0" rpy="0 0 0"/>
      <geometry>
        <mesh filename="computer_mouse.obj" scale="1 1 1"/>
      </geometry>
    </visual>
    <collision>
      <origin xyz="0.000000 0.000000 0.000000" rpy="0.000000 0.000000 0.000000"/>
      <geometry>
        <mesh filename="computer_mouse.obj" scale="1 1 1"/>
      </geometry>
    </collision>
    <inertial>
      <origin xyz="0 0 0" rpy="0 0 0"/>
      <mass value="0.100000"/>
      <inertia ixx="0.00011542" ixy="0" ixz="0" iyy="0.00005567" iyz="0" izz="0.00014136"/>
    </inertial>
  </link>
</robot>