Husky 3D Head, Coarse Thread This is a tripod head for cameras. The tripod mounting thread is 3/8 inch. The camera mounting thread is 1/4 inch. I purchased this used 7-8 years ago and have used it 2-3 times a year. It had quite a few scratches and signs of use when I bought it, so I disassembled it myself and applied grease (using GITZO grease) at the time of purchase. I disassembled it and applied grease again 2-3 years ago. The operation is smooth in all parts and it locks firmly. As expected of HUSKY, I think it will last a long time. Everything in the photos is included. Please consider this used item, stored at home, with the understanding that it is used.