4 Mounting Riser f/Ulysses Micro Thermal CameraStandard profile riser to raise camera from the mounting surface. It can be used for both ball up and ball down installation. Features:Material - ASA Plastic (Resistant to impact, chemicals, weather, and UV light)Dimensions (H x Diameter) - 4 x 8.858 In the Box:RiserRubber gasket and nylon shoulder washers*Sold as an Individual