For Sale is one universal iris. I've used it for quite awhile and it works as it should. I bought the parts to fix my French iris in the same size, and don't need 2 of these so this one needs to go to a new home. Min/max openings are 20mm and 80mm. Shown on a 6x6 lens board to illustrate the overall size, lens board not included. $275 including shipping in the USA. Paypal is fine, USPS money orders are better. I have no problem shipping most places outside the US, but you'd need to add a bit for postage. $$ to APUG if sold here.