The Godox Round Head Accessory Adapter S-R1 is easy to attach thanks to the adjusting screw. The adapter is a basic component of a magnetic system that can be mounted quickly and easily on most rectangular flash units from Godox, Canon, Nikon and Sony, among others. The modifier adapter is firmly attached to your flash thanks to the textured rubber pads on the top and bottom.
The S-R1 adapter slides easily onto rectangular flash heads, providing a round, magnetic attachment point for accessories. Thanks to the knurled knob on top, the adapter can be adjusted to different sizes