The Interfit Strobies Suction Cup (STR175) is designed to attach cameras and accessories via a 1/4inch tripod bush mount to solid surfaces. Simply undo the locking nut to raise the suction cup. wet the base. place on the flat surface and tighten the nut. Ensure the bond is secure prior to attaching any accessory.
To release undo the locking nut and gently raise the tab on the base.

Always test the security of the clamp before attaching any equipment