EKON OX BLOX Trailer Jack Block | RV and Camper Blocks for Any Tongue Jack, Post, Foot, or stabilizer (Round or Square) | Supports up to 10,000 lbs per Block, black (EKJS)

Heavy Duty: These trailer blocks for jack are made from super strong and durable 100% recycled plastic, providing heavy duty support for your camper trailer RVs. Versatility: This camper jack block is designed to fit a variety of jacks, such as RV tongue jacks, horse trailers, boat trailers and utility trailer jacks, making it versatile and convenient. Makes leveling easier: With these jack blocks for travel trailer, setting up your camper becomes a breeze. Simply place them under the jack and adjust as needed for a perfectly secure setup. Made in USA: Proudly made in America, these RV stabilizer blocks are crafted with quality and precision, ensuring reliability and longevity. Patented Design: OX BLOX camper blocks for jacks are designed by engineers in Utah to create a super stable, strong, and durable block. Patented: US 11,673,440 B2.