The BH-45 Ball Head is mainly designed for compact travel tripods and monopods. This ball head has an oversized locking knob for the ball and pan movement combined and a spirit level for precise control. These have been CNC machined from blocks of solid aluminium for maximum quality, and the smoothest movement. The head is Arca compatible and includes a QS-45H quick release plate that fits to the base of your camera, and can be tightened by hand using the D-ring, or with an allen key or coin. Weighing in at just 201g it performs, with up to a 3kg load capacity, perfect for mirrrorless or small DSLR cameras. Whether you are trying to get great portrait or landscape shots, this light yet strong ball-head delivers an incredibly solid grip. The base of this ball head is 33mm and uses a standard 3/8” thread with a 1/4" adaptor that allows it to be fitted to any travel tripods or monopods with a removable heads So if you're looking for a simple, solid ball head for your travel tripod or monopod, look no further.