Manfrotto 498RC4 Midi Ball Head is constructed of die-cast aluminum, strong enough to support an SLR camera with a medium lens, and light medium format cameras. It has a single repositionable locking lever for 360o panoramic rotation and +/-90o tilt movement, plus a friction control for precise positioning. Cameras are attached to the ball head with the 410PL Plate and RC4 Quick Release with 1/4'' male threads. The head to tripod attachment has 3/8'' female threads. Additionally, the Quick Release has a safety system to prevent an accidental detaching from the head.