Ergonomic design, the use of top alloy steel material, through the precision galvanizing process, it can not only stand up in extreme environmental conditions, but also show extraordinary corrosion resistance. When faced with a boat, RV or trailer weighing up to 1,500 lbs., our jack is easy and steady. Make heavy lifting easy, safe and reliable. The specially designed crosswind handle perfectly fits the curve of the hand, redefining comfort with every grip. Whether it is a quick vertical lift or a precise height adjustment, with a simple grip, you can achieve up to 12 in. of lifting range, from a compact contraction of 24 in. to 34.5 in. in an instant, flexible response to various needs, making operation smoother than ever before. What's more, the clever integration of the 2-wheel design, each wheel up to 6 in. in diameter, provides excellent stability and maneuverability, whether it is a bumpy field trail or a smooth parking lot. Thanks to the innovative rotating stand feature, this trailer jack achieves unprecedented convenience. Simply pull the bolt, rotate the bracket to the desired position and everything is set up in no time, no complicated steps and quickly integrated into your trailer system. Material: Metal.