These articulating arms feature all metal construction and two ball joints controlled by one lock. Each joint allows 360° rotation and 180° tilt. The foot has a built-in lock and features a female 1/4-20 thread. One arm has an adjustable shoe on the top and the other has a 1/4-20 threaded post and platform. The DL-0389, with 1/4-20 post, measures approximately 5-1/2 inches high and the DL-0387, with adjustable shoe, measures approximately 5-3/4” high.