I have long searched for a usable ball head at a reasonable price and have to say that this part has for the price a good processing and above all, a security lock when mounting the camera plate. Already when putting this lock engages automatically and prevents release of the disk eg inclination of the ball head. The only point for criticism, the mounting screw on the underside of the ball head is 3/8 inch and most tripods have 1/4 inch thread. Best not forget to order an adapter screw.