2.The suction cup can be attached to any smooth or convex surface which will allow it to form an air tight inner seal as a result of the interior air being removed and forming a vacuum.ldeal for attaching magic arms, support rods and φ75mm bowl mount.
3.Once attached to a smooth or convex surface, such as glass, the suction cup can remain in place for up to 12 hours without loosing its vacuum seal. It isadvisable, however, to check the cup and seal every 4 hours of attachmentand use.
4.The suction cup is ideal for attaching and supporting most cameras, camera heads and accessories with an appropriate screw thread.
5.The suction cup is designed to work with 3/8" and 1/4" threads and comes with a built in 3/8" and 1/4" converter screw.