This is a nifty wiper for removing most of the moisture from roll film to speed drying. It has four miniature rubber squeegees on each side. Useful for 35mm and 120. I don't remember buying this, but there it was in a box under the sink! The original packaging is a bit shelf-worn, but the wiper itself is unused. The Jobo catalog number is 3530. I shoot a lot of 120 and have never had a problem with water spots, so I guess I don't really need it. How about $10 plus shipping for this high quality bit of unobtanium?