For your consideration, here is a Package of 2 Presto Cooker Automatic Air Vents, no. 82058, with instruction sheet and box.  The vents are in nice shape and look new.  The plastic is very pliable on them.  The box is very worn and faded.  It will be mailed in a box for protection.  The item pictured is the actual item up for sale and comes from a non-smoking household.  (403.822o-.4bx3)