OX BLOX MAXX, RV Jack Block for 9" Round Feet | 5th Wheel Camper Blocks for Stabilizers and Tongue Jack | 9" and Smaller Jack feet nest securely Within ridges | 10.5x10.5x4.5, Block Weight: 6.8 lbs

Ensure RV Stability: Eliminate most movement with the strongest RV stabilizer blocks available. The corner ridges keep the foot secure and stable. Unique design provides the most stability & strength. High Quality & Made in the USA: Patent-pending design by American engineers, these US-made heavy-duty jack blocks for travel trailer are made the old-fashioned way, UV-resistant and built to last. Perfect Fit: Suitable for 9" large round jack feet found on many 5th wheels & RVs. The shorter 4.25" height of the trailer blocks for jack makes them convenient for stabilizer jacks, compared to a bucket block. 10,000 lb-Capacity. The larger surface area of these camper jack blocks created by the web design on the bottom of the block is a more stable surface area than alternative blocks. Size: Made of UV-resistant recycled plastic, the recessed pad area of these camper blocks is 9.25" circle with a 5.25" gap between ridges. Each block is 10.5x10.5x4 and weighs 6.8 lbs.