YUNNIEHOM Trailer Jack Block 6" Height RV Stabilizer Leveling Pad — Heavy-Duty Polymer, Stackable with Carry Bag

YUNNIEHOM 6" trailer jack block is a stackable, heavy-duty RV support pad that raises and steadies trailer jacks, tongue jacks, scissor stabilizers and 5th wheel posts for safer, more stable camping.

These jack blocks are molded from tough, weather-resistant polymer with UV and anti-aging additives so they withstand outdoor elements, dirt and oil throughout many seasons. Each 6-inch pad gives a broad, stable base and is rated for high capacity loads, making them a practical addition to any travel trailer, camper or tow setup. Lightweight and easy to move, the blocks include a carrying rope and a storage bag for neat transport and stowage.

How do these blocks improve trailer stability on uneven ground?

By lifting the jack foot onto a wider, firmer surface, the blocks prevent sinking and rocking on soft or irregular terrain. Their extra-wide base spreads weight over a larger area so the jack sits level and secure.

• 11.5-inch wide base minimizes pressure on gravel, sand, and grass
• 6-inch height provides consistent, repeatable lift per block
• High-performance polymer resists deformation under heavy loads

Will these fit my trailer’s jack, stabilizer or post?

Yes — the YUNNIEHOM pad is designed to accept most common jack foot shapes, including round and square tongues, scissor stabilizer feet, and standard trailer jack plates. The opening and surface geometry combine compatibility with non-slip support.

• Compatible with tongue jacks, post feet, wheel jacks, and scissor stabilizers
• Works with 5th wheel and travel-trailer setups
• Fits both round and square jack foot designs without adapters

How convenient are they to carry and store at camp?

Each block includes an integrated side hole and a rugged rope for one-handed hauling, and the set comes with a compact storage bag so you can keep them organized in the trailer. The lightweight polymer keeps pack weight low while preserving strength.

• Built-in side hole and rope for easy lifting and hanging
• Included storage bag keeps multiple blocks tidy and transportable
• Stackable design reduces footprint in storage compartments

How durable are these pads against weather and long-term use?

Manufactured from a high-performance polymer blend with UV stabilizers and anti-aging additives, these pads resist cracking, brittleness and surface breakdown. They tolerate exposure to sunlight, moisture and common contaminants like oil and dirt without losing structural integrity.

• UV-resistant compound reduces sun damage and fading
• Anti-aging additives improve lifespan under outdoor conditions
• Easy-to-clean surface resists grime and oil buildup

Who is this for? These 6-inch YUNNIEHOM jack blocks are ideal for RV owners, weekend campers, and overland travelers who need dependable, portable support for jacks and stabilizers. If you camp on soft ground, frequently park on uneven surfaces, or want a lighter alternative to bulky wood or metal supports, these stackable pads provide predictable lift and a broad, secure footprint. They suit owners of travel trailers, fifth wheels, pop-ups and toy haulers who want easy storage, simple handling and long-lasting performance without specialized adapters.