The Gitzo QR plate D short with rubber is Arca-Swiss compatible and stays secured to your spotting scope's or camera's base, letting you quickly attach or remove cameras from your tripod head. The added rubber pad ensures a solid connection with the optic. This plate adds a nominal 1.6 oz to the load of your camera equipment so that you can take it with you wherever your photography journeys take you! A 1/4" camera screw can be tightened with a coin or the included hex key.