Simply screw the dovetail clamp onto your tripod for head, and you can mount your on the tripod. A generously dimensioned surface with 24 mm width presses the bar against the other side of the clamp. Areal clamping with brass screws and locking screws - protects the accessories and provides a very stable connection. The center distance of two holes for M8 screws is 35 mm For attaching the clamp, 7 bores are available, five bores for M6 and 1/4inch screws, two bores for M8 screws. The clamp itself can be adapted to a mount, to the counterweight shaft or another dovetail bar, building a double connection. brand new and high quality Colour:silver Material:Metal Package Contents: 1 x Dovetail Clamp Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.