Make major height adjustments by simply moving the adjustable legs inward or outward. Adjustment range is from 35" to 55". Use with a 5th wheel trailer to stop the trailer from rocking back to front or side to side. Make minor adjustments at the screw level with the adjustment rod provided. To keep the head tight against the trailer. Just one small part for the best results. 5000 lb Capacity Black Powder Coating Designed to support the overhang at the front of the 5th wheel trailer. Lets you sleep peacefully and hardly feel any movement when people enter and exit. 12 GA Steel Rugged steel construction achieves a maximum load capacity of 5,000 lbs. Even so, it cannot be supported alone and needs to be used together with other support jacks. Is the assembly easy? In fact, the product you receive has already been mostly assembled. Except for the assembly of the head, feet and chain. Based on this, I think it will be ready to work when you receive the package. How to install it? Move the Tripod Stabilizer under the overhang of the trailer. Move the three legs for large height adjustment and then use the adjustment rod for small height adjustment. Until the head is tight against the trailer. Don't forget to use the chain. What if my package is damaged and missing parts? Please let us know in the first instance. We will send you the parts as fast as possible. Is it possible to use it to support the RV alone? This is not allowed. Tripod Stabilizer is designed to stabilize the trailers. It needs to be used with other support jacks or stands. Function: A-KARCK 5th Wheel Stabilizer is used to support the overhang at the front of the fifth wheel trailer. It helps prevent your trailer from rocking when you are moving around inside the trailer. Note: The stabilizer is used in conjunction with the support jacks and are not intended to support the full weight of your coach. Installation: 1. Move the 5th wheel stabilizer under the overhang at the front of the trailer. 2. Rotate the tripod so that one leg points to the front of the trailer. 3. For larger height adjustments, move the tripod legs in or out. 4. Connect the hitch cup with the King Pin. 5. Use the provided adjustment lever for minor adjustments, place the hitch cup close to the King Pin. 6. Use the chain to prevent the stabilizer's removal