Features: Durability 1/4in-20 aluminum alloy adapter provides double female thread for secure connection between tripods, magical arms, and camera gear. precise machined thread and knurled surfaces ensure slip resistant grip and effortless installation for stable equipment setups. Essential for photographers, videographers, and live streamers requiring versatilitys threading solution across professional camera rigs and mobile accessories. Seamlessly connect motorized sliders, articulated arms, light stands, and mini ball heads through standardized 1/4in-20 threading compatibility. compactly 18mm height design with 16mm diameter enables space efficient mounting while maintaining robusts aluminum construction for studio or outdoor use. Specifications: Component: Aluminum alloy Color: Black Size:Approx.18x16mm/0.71x0.63inch Interfaces: 1/4inch female to 1/4inch female Package Includes: 2pcs 1/4 Screw Converter note: Please allow 1-2cm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual item color.