"Aluminum Pole Mount for indoor and outdoor installations, for poles with diameter between 100-410 mm (4""-16”). Includes 1 pair of AXIS Stainless Steel Straps 1450mm (57"") with TX30 screw interface for ease-of-installation. AXIS T91B57 is compatible with mounts such as AXIS T91G61, T91H61, and AXIS T98A Surveillance Cabinet series. Color: Axis white."