Simply screw the dovetail clamp onto your tripod head, and you can mount your telescope 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. Dovetail Clamp only, other accessories demo in the picture is not included Areal clamping with brass screws and locking screws - protects the accessories and provides a very stable connection 8 bores allow connecting to almost all surfaces Loading Weight:10kg Dovetail Upside:39.5mm Dovetail Downside:45mm Dovetail Depth:12mm M8 Pitch:35mm M6 Pitch:19mm, 35mm Quantity:1 Pc Colour:Silver Material:aluminium alloy Size:app.6.3x7.2x2.4cm/2.48x2.83x0.94in Package Contents: 1 * Telescopes Platform 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.