Also will be one in a bag that is new (31 used + 1 new) also. None are stuck and none are spring return, All can be rebuilt if one would like, although there are only a few (2 or 3) that actually need to be rebuilt.If you would like some close up photos or some measurements on any one style in particular, please contact me. Some have the odd air fitting still attached and also some have attachments/brackets also. The item "Lot of 31 A1-OK-Used Compact Air Products Square Cylinders-All Flavors & Sizes" is in sale since Saturday, January 12, 2019. This item is in the category "Business & Industrial\Hydraulics, Pneumatics, Pumps & Plumbing\Hydraulic & Pneumatic Cylinders". The seller is "thebigron" and is located in Maiden, North Carolina. This item can be shipped to United States.