Nilight Trailer Jack Block 6" RV Stabilizer — 40,000 lb Rated, Stackable Anti-Slip Leveling Block

Nilight's 6" trailer jack block is a heavy-duty, stackable RV stabilizer that provides stable, slip-resistant support and leveling for jacks up to 40,000 lbs per piece.

When parking or working around a travel trailer, fifth wheel or camper, the jack sits on a small footprint that can sink into soft ground or shift on gravel and pavement. This Nilight block is molded from reinforced polypropylene with a wide base and honeycomb surface to enlarge contact area, reduce movement and keep jacks secure — whether you need a single 6" lift or stacked increments for extra height.

How will this block improve jack stability on soft or uneven ground?

The broad 11.6" base distributes weight across a larger area to prevent sinking and rocking when the jack bears load. The textured honeycomb top grips jack feet to reduce slippage, and the built-in drain channel prevents water or mud buildup that could undermine contact.

• Wide 11.6" base spreads load to minimize sinking
• Honeycomb anti-slip surface secures a variety of jack feet
• Drain hole evacuates water and debris for consistent contact

What are the size, materials and load capabilities?

Each block measures approximately 6" tall and is constructed from durable polypropylene, formulated to resist sun, oil and moisture for long outdoor service. A single block supports up to 40,000 lbs, and the stackable design allows you to combine pieces to reach the exact height you need.

• 6" height makes it a practical single-stage leveling solution
• Duty-grade PP material resists UV, oil and water exposure
• Rated 40,000 lbs per piece — stack to increase lift

Will it fit different jack types and camping conditions?

Yes — the block is shaped and sized to accept a wide range of jack feet, from tongue and wheel jacks to 9" round fifth-wheel and scissor jacks. Its design works on surfaces like hard pavement, gravel, grass, mud and snow, making it suitable for roadside stops, campsites and storage situations.

• Compatible with tongue, wheel, hydraulic, and scissor jacks
• Useful on asphalt, gravel, dirt, sod and soft ground
• Stackable for greater elevation or uneven surface compensation

How portable and convenient is it to carry and store?

Nilight added practical handling features so each block is easy to move and pack: a side handle hole and included rope provide multiple carrying options, and a storage bag keeps blocks organized and compact when not in use. The lightweight polymer construction balances strength with transportability.

• Integrated side handle hole and rope for easy carrying
• Storage bag included to save space and protect blocks
• Lightweight yet robust — simple to load and stack

Who is this for? The Nilight 6" trailer jack block is aimed at RV owners, tow-vehicle operators, mechanics and outdoor enthusiasts who need dependable jack support on varied terrain. It suits anyone who frequently levels or stabilizes trailers, fifth-wheels and campers and wants a durable, non-slip, easy-to-store solution that resists weather and road grime without adding excessive weight.