ROBLOCK 6″H Trailer Jack Block with Bag – RV Stabilizer
$28.39 on Amazon.com (as of October 11, 2026, 2:05 AM EST) View details ↗
Engineered for demanding RV owners, the ROBLOCK 6″H trailer jack block combines a high‑performance polymer body with anti‑UV additives to resist dirt, grime, oil and sun exposure. Each block supports a gross vehicle weight of up to 40,000 lbs, eliminating virtually all movement and sway when your travel trailer or motorhome is parked.
The versatile design fits nearly any tongue‑jack foot, wheel jack, 9″ round 5th‑wheel hydraulic jack foot, scissor stabilizer, or similar device. A stackable construction lets you raise or lower the block in increments, ensuring precise leveling on uneven ground. A side‑mounted hole and attached rope make transport easy, and the included storage bag keeps the block compact when not in use.
| Maximum Load Capacity | 40,000 lbs |
|---|---|
| Dimensions (H × L × W) | 6″ × 11.5″ × 11.5″ |






