• ELIMINATES NEARLY ALL MOVEMENT AND SWAY in parked RV's and Trailers (Less Stress on Your Trailer)
• DOUBLE USE FOR YOUR MONEY: Use them as a seat, a motorcycle stand, or a water bucket to put out your campfire!
• RECESSED PAD AREA IS 9-1/8" diameter, recessed post-hole is 2-1/2" diameter;
• DIMENSIONS: 8" tall, 12" diameter at base, 10" diameter at top (14" tall when double-stacked)
• The Trailer Jack Block is extremely strong and durable -and resists dirt and oil. The blocks are stackable for extra height and can even double as seats or step-stools (Note: do not stack more than two high)