I am selling a set of 3 extension rings I used for macro and close-up photography on Hasselblad cameras. I love these rings because they allow for macro and also to tighten the framing of portraits, etc. These are very versatile and extremely useful. I'd like to sell the set for $170 shipped CONUS. That is a little less than I paid for them, but if I can sell them as one set, I can avoid the cost of multiple shipments. Thanks for looking!