If you only need to mount 1 table leg select single leg clamp, if you need to mount 2 table legs select dual leg clamps.
They are designed to fit table legs with a diameter of 2 1/4". If you have a different diameter leg and you would like a custom set made please contact me.
They include 4 screws to mount them with, however you may need different length screws depending on what you will screw them to.