Durable Trailer Jack Wheel Replacement – The Wioxewi jack wheel is made of high-strength poly, designed to handle up to 1200 lbs of load. Perfect as a wheel for trailer jack or as a boat trailer jack wheel replacement Smooth Rolling and Stable Support – This trailer wheel offers quiet, stable, and smooth movement on pavement, concrete, or gravel. Ideal for trailer jockey wheel and trailer caster wheel applications All-Weather & Temperature Resistant – The all-poly construction keeps this trailer jack wheel working perfectly from -50°F to 250°F, whether used as a boat trailer drop down wheel or a trailer tongue jack wheel Universal Compatibility – Works with most trailer jack wheels and utility trailer jack replacement parts accessories, compatible with common trailer jack replacement parts and assemblies found on RVs, campers, and boat trailers Quick Installation (Pin Not Included) – This trailer jack replacement part installs easily — just remove the old wheel and slide in your new Trailer Wheel