The PMB-18 Inverted Ball Head from Sunwayfoto is a compact ball head that features a unique inverted design that provides low-profile panoramic positioning. It has a 1/4"-20 female threaded base for easily attaching to many tripod models or other quick release plates, plus a stainless steel 1/4"-20 adapter stud for attaching clamps or other adapters. The quick release lever allows the head to be released, repositioned, and re-locked in just seconds. An independent pan lock knob allows precise positioning along the numbered panoramic scale. The integrated Arca-type quick release clamp has a precision scale and bubble level.