While annoying, there are no moving parts to ware and will do a very good job for you. The bag is a poly (4x8) and the first few feet are beat.
Again it works, but not perfectly. I will include a new nipple so the bag can be shortened and most of the punctures removed. The last image on the listing is a piece I recently made with the bag.
Please feel free to ask any questions. The item "Vacu Press Air (6cfm) Vacuum Veneer Press Pump with Bag" is in sale since Tuesday, January 26, 2016. This item is in the category "Business & Industrial\Manufacturing & Metalworking\Woodworking\Equipment & Machinery\Other Woodworking Equip". The seller is "sukialice" and is located in Easthampton, Massachusetts. This item can be shipped to United States.