Features: Strong folding parking support crafted from strong strength steel delivers 450kg load capacity, outperforming aluminum alternatives with 3x enhanced durability for secure stabilization on uneven terrain. Adjustable height from 12" to 18" (305mm to 457mm) enables fast 30 second leveling adjustments, ideal for optimizing trailer stability across slopes or campsites. Essential for owners, camping enthusiasts, and adventure travelers seeking reliable vehicle stabilization during family trips or wilderness expeditions. Perfectly stabilizes travel trailers and campers on gravel roads, hillsides, or uneven parking spots while folded compactly to conserve storage space. Tool free installation and space saving foldable design simple outdoor adventures, ensuring quick deployment and organized storage in tight compartments. Specifications: Material: Steel Total height after shrinkage: about 289mm/11.4inch Expanding height: about 455mm/18inch Package Includes: 2pcs Trailer lift stabilizers note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item.