Nice construction made a little wider at teeth end than the Manual thumb so it will clear the boom when retracted, I don't think I could have just added a cylinder and hoses without striking my boom/hoses if I used the manual version that came with my excavator.
Came separately than ordered excavator, postal guy had to lift about 40Lbs. wood box inserts were slightly cracked through by shifting weight but no damage to components.
Wish they had a catalogue to order parts from, or provide a spec sheet for figuring out what size seals, fittings, etc. will need when repairing.