Kohree Heavy Duty RV Leveling Blocks, 12 Pack Camper Leveling Blocks with Storage Bag, Interlocking Sturdy RV Blocks for Single and Dual Wheels, Stabilizer, Jack, Travel Trailer Accessories

["Customizable Leveling Height: Kohree RV leveling blocks set includes 12 Pack Blue Blocks(2 flat top blocks + 10 stackable bottom blocks). Simply set them into a pyramid shape to reach the desired height for leveling.","Sturdy & Strong Construction: Made of high-density and reinforced material, leveling blocks provide sturdy level support for RV wheels to replace fragile wood blocks.","Size: Each blue rv block for leveling measured 8.54\" x 8.54\" x 1.45\".","Easy to Carry & Store: The trailer leveling blocks are easy to carry and stack the blocks together to store in the included black carrying bag.","Widely Usage: Kohree camper leveling blocks can be used with single wheels, double wheels, tongue jacks, stabilizer jacks, and 5th wheel jacks. Compatibility: Compatible with Kohree leveling blocks and jack."]