Weize trailer jack supports, lifts and lowers your boat or recreational trailer, lift capacity: 2000 lbs, 26.7" to 40.9" Bolt-on installation - Fit for Mounting Plate width 4.13" to 4.92"(no more than the length of the bolt size M10*110MM) and vertically 4" height(3 holes for you to adjust, it is 1.96inch, 2.753inch, 4.13inch). Corrosion-resistant zinc finish prevents rust even in the harshest environment. 5.79” diameter x 2" wide dual wheels provide support, stability and simple maneuverability. The marine jack hasThe marine jack has a convenient handle which allows you to easily swing jack in place, pivot up to stow parallel to trailer tongue for travel, move back into upright position for use. a convenient handle which allows you to easily swing jack in place, pivot up to stow parallel to trailer tongue for travel, move back into upright position for use.