The studioking adapter ring sk-ri for hensel and richter is an adapter with which you can place affordable accessories, such as softboxes, snoots and reflectors from falcon eyes on flash units from the hensel expert collection among others. with the help of this adapter ring you can save on original, expensive softboxes, diffuse balls and beauty dishes. the outer size of the adapter ring is 15.2 cm. when you have an accessory with an interchangeable ring, you can take it out and swap it with this ring. Application studioking sk-ri adapter ring If you own flash units from hensel or richter you can use this adapter ring to mount accessories from falcon eyes, linkstar and studioking. condition is that the accessories have an exchangeable adapter ring.