It swivels while the gate is moving, and adjusts to the ground due to the spring. It is lockable by using the brake. Installation was a bit tricky in that my gate is about 6 feet long and goes up an incline.

The homhoo caster is a great solution for sagging gate. The assembly has an appropriate amount of heft and appears to be made of a decent gage metal. It's very solidly built.

Strong enough to hold up my barn door. I have a 16' gate with a gate opener that was slowly drooping and started dragging the ground, sometimes making the gate opener stop working. This 4-inch gate caster is perfect for a gate that we have in the back...  Read More

The mechanics look strong and the mechanism is definitely hold quite of bit of our gate’s weight. The spring seems to be of good quality and appropriate tension for a setup like this.

Bad welding. Very cheaply built, and are tack welded. The gates weigh just over 180lbs apiece.