ROBLOCK Trailer Jack Block, 1 PC RV Camper Stabilizer Blocks with Bag for Travel Trailer, G.V.W: 25000 lbs, Use for Any Tongue Jack, Post, Foot, 5th Wheels, Round Square or Scissor Stabilizer (Black)

Light weight. Fits my 5.5 x 5.5 stabilizer jack feet perfectly on my 5700lb TT. Sturdy and perfect height for my application. 4 blocks nest to height of 15.5” when stored. Comes with 2 nice storage bags but I will not be using them because they nest neatly together. See product description for L x W x H of individual blocks. Nice hand hold to place and remove blocks. Stackable to increase height when needed. 25000lb capacity? I will never need anything close to that weight to test that claim.

I like the simplicity and sturdiness of this box. Works great on my trailer jack.

These are good and sturdy. Not just too heavy. Come with nice bags to put them inside. Worth the price.

It works so much better than the heavy piece of wood we used to use and better than the cement blocks. Easy to lift and maneuver. This is a nust for all trailers. The size is perfect and is very sturdy.

Works as designed. Nice stackable and fits great in the storage area

I was pleasantly surprised at how well made and heavy duty these are compared to the pictures. I am very happy with this product.

Simple and gets the job done

Light weight and strong.

Lighter than wood blocks and good bags for ease of storage

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