This is my Bigfoot QT8K-16 Hydraulic Trailer Tongue jack unboxing, install, and review.
I purchased this (as there are other chooses) because the company is family owned and operated. All main components come from the Midwest region (USA Built).
It appears to perform it's function well, but...there could have been more attention paid to the design.
That being said what they did was take their RV leveling piston and convert it for use on the trailer tongue.
It has an 8,000 pound lift capability with a 16 inch travel of the piston.