Impact BHE-108 Flex Arm for Super Clamp Ideal For Supporting Small Video Lights, Speedlights, Reflectors Or Other Items Designed To Fit Super Clamps | Aluminum and Brass Construction | 21.65" Long 0.66 lb Load Capacity | 5/8" Hex Stud with female 3/8" Tap | 5/8" Stud with 1/4"-20 Screw Limited 1-Year Warranty