Features: Heavy Duty D rings Shackle delivers a 1800kg secure connection for trailers, solving unstable linkage issues with reinforced structural design to enhances towing safety during heavy load transportation. Crafted from high strength steel with erosion resistant black coating, this trailer stake features tool easy release key installation and general compatibility with grab hooks, ratchet straps, and chain binders. Ideal for construction crews, truck drives , and logistics professional requiring stable heavy duty towing solution in commercial hauling or frequent equipment relocation scenarios. Perfectly anchors flatbed trailers and utility vehicles when transporting machinery, construction materials, or agricultural equipment across hard terrains or extended outdoor operations. Its multi functional D rings design doubles as a versatile attachment point for J hooks, S hooks, and chain links while maintaining sleek aesthetics that complement modern towing setups. Specifications: Component : Steel Size: about 5.5x2.38x4.75 inch 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. Package includes: 4x D Shackle Tow rings Or 2x D Shackle Tow rings