Double mount lens holder for INON AD Bayonet mount attachment lenses. Holds two lenses. Store lenses securely and conveniently when not in use. Quickly switch between wide-angle and close-up lenses for more shooting flexibility. Compatible with UFL-165AD, UWL-100 28AD, UWL-105AD and UCL-165AD lenses. Mounts to INON strobe arms and Grip Bases. Also mounts to "Ultralight" strobe arms. Mounting two "AD Lens Holder" to opposite side of arm/grip. * Arm is not included.