Place your camera accessories at exact positions with the Redrock Micro microArm Short. The locking ergonomic knob in the Redrock microArm 1.5" Black helps in positioning the accessories. Made from anodized metal, the Redrock 1.5" MicroArm ensures a durable performance.The Redrock Micro MicroArm Short comes with 1/4" 20 male screws on each endThe long arms measure 4", and the short arms measure 1.5"The Redrock 1.5" MicroArm weighs 5.5oz