This is 3/8" Bore Air Cylinder with Pinned Adjustable Attachment Bracket. FEATURES: One Inch of Piston Travel Turned Bar Stock Aircraft Aluminum Parts No-Leak, Sealed Front End Shaft is Internally Threaded for Positive 2/56" Threaded Rod/Clevis Attachment. Cylinder that Delivers 11 Pounds of Force at 100 psi. INCLUDES: One 3/8" Air Cylinder with Pinned Adjustable Attachment Bracket. JAL 1/15/99 ir/jl