Vestil Trailer Stabilizing Ratchet, Steel, 40,000 Uniform Lifting Capacity, 100,000-lb Uniform Static Capacity, Yellow, 26-5/8"L x 17-5/8"W x 39"H, 1 Each

These high-strength steel trailer stabilizing jacks are essential safety tools designed to prevent semi-trailers from up-ending or tipping during loading and unloading when disconnected from a tractor.  Each unit features a manual raising and lowering mechanism with a lubricated ACME screw for smooth operation, a reflective collar for high visibility at night, and a large rectangular top plate that sits perpendicular to the trailer's underside for maximum stability. To ensure full compliance with OSHA regulations, these yellow powder-coated jacks should be used in pairs on flat, stable surfaces in conjunction with wheel chocks.