{"product_id":"4in-jack-block-with-magnets-heavy-duty-rv-camper-support","title":"4in Jack Block with Magnets - Heavy Duty RV \u0026 Camper Support","description":"\u003cp\u003eOur review of the 4in Jack Block with Magnets finds it to be a straightforward, heavy-duty support solution for RV owners, campers and trailer haulers who need a compact, reliable pad under their trailer jack. The single biggest reason to buy is the combination of a wide 12in base and a 50,000 lb support rating that delivers confidence on uneven or soft ground, while the built-in magnets and finger holes make placement quick and precise. This is a practical, no-nonsense accessory for anyone who routinely levels or stabilizes trailers.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Support:\u003c\/strong\u003e Rated for up to 50,000 lb, the block provides exceptional stability for campers, toy haulers or utility trailers when parked or stabilized.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Footprint:\u003c\/strong\u003e At 4in tall with a 12in diameter base, the block offers a low profile that still spreads load over a large area for better ground contact.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Common Jacks:\u003c\/strong\u003e The top accepts up to a 9in round jack pad so it works with most RV and trailer jacks without slipping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Alignment:\u003c\/strong\u003e Built-in magnets help the jack land squarely on the pad for faster, safer setup, especially in low light or tight spaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple Handling:\u003c\/strong\u003e Integrated finger holes let one person position the block cleanly without bending or awkward grips.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Domestic manufacture and a lifetime warranty point to durable construction and long-term value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis jack block is best for RV and trailer owners who want a durable, reusable solution to prevent jacks from sinking on soft ground or shifting on uneven campsites. It suits people who tow campers, toy haulers or utility trailers and need a solid, portable pad that fits common round jack pads.\u003c\/p\u003e\n\u003cp\u003eLess suitable for users who need variable height stacking beyond 4in or specialized leveling systems; those requiring adjustable telescoping blocks or multi-height platforms should look for multi-piece leveling sets instead.\u003c\/p\u003e\n\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery high load rating gives confidence under heavy trailers and toy haulers.\u003c\/li\u003e\n\u003cli\u003eWide 12in base spreads load to reduce sinking and improves stability on soft surfaces.\u003c\/li\u003e\n\u003cli\u003eMagnets and finger holes make placement quick and reduce setup fumble.\u003c\/li\u003e\n\u003cli\u003eLifetime warranty and US manufacture indicate long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFixed 4in height means limited flexibility if different stacking heights are needed.\u003c\/li\u003e\n\u003cli\u003eRelatively compact size may not distribute load as well as larger multi-piece pads for very soft terrain.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eAndersen Hitches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eHeight\u003c\/td\u003e\n\u003ctd\u003e4in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBase Diameter\u003c\/td\u003e\n\u003ctd\u003e12in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTop Fit\u003c\/td\u003e\n\u003ctd\u003eFits up to 9in round jack pad\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity\u003c\/td\u003e\n\u003ctd\u003e50,000 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry\u003c\/td\u003e\n\u003ctd\u003eMade in USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 4in Jack Block with Magnets is a practical, high-capacity support pad ideal for RV and trailer owners who need dependable, quick-to-place stabilization. Its 50,000 lb rating, wide base and magnetic alignment deliver strong value for regular campers and haulers, though those needing variable heights should consider additional stacking options.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this fit my trailer jack?\u003c\/strong\u003e\u003cbr\u003eThe top accepts up to a 9in round jack pad, so it fits most common trailer and RV jacks with round pads.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow much weight can it support?\u003c\/strong\u003e\u003cbr\u003eIt is rated to support up to 50,000 lb, suitable for large campers and toy haulers when used as intended.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs it durable for long-term use?\u003c\/strong\u003e\u003cbr\u003eYes, it is made in the USA and backed by a lifetime warranty, indicating durable construction for repeated use.\u003c\/p\u003e","brand":"Andersen Hitches","offers":[{"title":"Default Title","offer_id":48194979823835,"sku":"B0DZZXZGNH","price":49.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/61eppexGnfL._AC_SL1500.jpg?v=1770290430","url":"https:\/\/gearmusthave.com\/products\/4in-jack-block-with-magnets-heavy-duty-rv-camper-support","provider":"GearMustHave","version":"1.0","type":"link"}