Man, looks just like mine, but I could swear they weighed out more. Maybe a newer model? Maybe I'm just wrong. I'll check mine next time they are off the camper.
Had a chance to weigh my jacks- 29# each. They weighed a little more when you put all 4 on the scale together. Bathroom scales are meant to weigh people and aren't very accurate at low weights. So, I weighed myself, then myself with one jack and subtracted. Got 29#. It weighed 26# on the scale alone.
So I guess my older jacks weighed a little more. Either way, taking them off saves about 100#.