Description: - Submersible Housing Diving Flashlight Ball Arm Joint - Wide applications: mount flash light, camera field monitor slider, tripod, more photography equipment with 1/4 hole - 25mm / 1" diameter ball head suitable for ball clamps and accessories. - Part of the ball arm mounting system - Made of high quality aluminum and PC material for long time use. Specifications: - Material: Metal - Ball Head Diameter: 25mm / 1" - Size: 22.5 * 2.5 * 2.5 cm / 8.86 * 1 * 1 inch Package Includes: 1 x Ball Arm (8 inches)