Ryctoe 037305 is a Hot Shoe Adapter designed to help turn the shoe-mount of your DSLR into a 3/8″ thread.
The brass plate slides perfectly into your shoe mount, with the ‘bottom’ of the two thumb wheels ready to clamp securely in position.
You then have a male 3/8″ thread ready for action, with the ‘top’ thumb wheel ready to apply some friction lock as soon as you’re in position.
Of course, this Hot Shoe 3/8″ Adapter can be used with other Rycote accessories, including the very handy 10 cm Hot Shoe Extension and 20 cm Hot Shoe Extension.