lentduy RV Trailer Jack Block, 1Pc RV Stabilizer Block Supports up to 15000 Lbs, for Any Types Travel Trailers 5th Wheels, Tongue Jacks, Post, Foot, and Round, Square, Scissor Stabilizers is up for auction in Automotive. The current bid is $7.50, 85% below the $48.99 MSRP, in Brand New condition. This auction has ended — similar items appear in live auctions regularly.