Semi-mount Ring

*     *   *****    *****   ******    *****      *      *****   
**   **  *     *  *     *  *     *  *     *    * *    *     *  
* * * *  *     *  *        *     *  *     *    * *    *        
*  *  *  *     *  *        ******   *     *   *   *   *        
*     *  *   * *  *        *        *     *   *****   *   ***  
*     *  *    *   *     *  *        *     *  *     *  *     *  
*     *   **** *   *****   *         *****   *     *   *****