bing tracking image
  1. Camper Jacks
  2. Weigh Safe
  3. Leveling Blocks
  4. 5th Wheel Camper
  5. Pop Up Camper
  6. RV Motorhome
  7. Teardrop Camper
  8. Travel Trailer
Weigh Safe Flap Jack Folding RV Stabilizing Blocks - 8" Tall - 6K - Qty 2
Special Savings on Select Weigh Safe Items. See Cart for Savings.
Weigh Safe

Weigh Safe Flap Jack Folding RV Stabilizing Blocks - 8" Tall - 6K - Qty 2

Part Number: WS78ER
$129.00
Camper Jacks
Add to cart
Instant Rebate
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

Need help with installation?
Locate installers near me
What folds flat like a pancake for easy storage, unfolds in seconds, and comes with a carry bag for easy transport? The Flap Jack! These durable jack blocks provides a stable base for your trailer, RV, or camper, making setup quick and hassle-free. 1-800-940-8924 to order Weigh Safe camper jacks part number WS78ER or order online at etrailer.com. Free expert support on all Weigh Safe products. Great prices and Fastest Shipping for Weigh Safe Flap Jack Folding RV Stabilizing Blocks - 8" Tall - 6K - Qty 2. Camper Jacks reviews from real customers.
  • All Info
  • Reviews (9)
  • Q & A (0)
  • Photos

Weigh Safe Camper Jacks - WS78ER

  • Leveling Blocks
  • 5th Wheel Camper
  • Pop Up Camper
  • RV Motorhome
  • Teardrop Camper
  • Travel Trailer
  • 5001 - 6000 lbs
  • Weigh Safe
  • 8 Inch Lift
  • 2 Jacks
  • Plastic

What folds flat like a pancake for easy storage, unfolds in seconds, and comes with a carry bag for easy transport? The Flap Jack! These durable jack blocks provides a stable base for your trailer, RV, or camper, making setup quick and hassle-free.


Highlights

  • Folds Flat Like a Pancake: Each block collapses down small to maximize storage space and make transport easy.
  • Engineered for Stability: Block locks firmly into place when unfolded, giving you a stable base every time.
  • Strong & Stable: Durable, UV-resistant plastic construction supports up to 6,000 lbs per block.
  • Effortless Setup: 3-Piece design snaps together in seconds with built-in neodymium magnets.
  • Ready to Roll: Includes a zippered carry bag that holds both blocks - perfect for travel or campsite storage.

Features to Know About

Folds Flat for Easy Storage

Each Flap Jack block collapses down like a pancake, taking up minimal space when not in use. The slim, fold-flat design makes it easy to store both blocks in your RV, truck, or gear bag without the bulk of traditional jack supports.

Effortless Setup

No complicated assembly required! Simply separate the 3 pieces, align them, and let the built-in neodymium magnets snap everything into place. It's a quick, tool-free solution that gets you stabilized in seconds.

Strong & Stable

With a 6,000-lb weight capacity per block, each jack block is built to handle heavy loads without flexing. The solid design provides a steady, reliable lift, reducing stress on your jack and equipment.

Portable & Adventure-Ready

Designed with campers and travelers in mind, this 2 pack is lightweight, compact, and comes with a zippered carry bag that keeps both sets of pieces together for easy transport and storage. Whether you're hitting the road or setting up at the campsite, this set is a must-have for a hassle-free setup.

Specs

Dimensions:

  • Open:
    • Length: 9-1/2"
    • Width: 8-3/8"
    • Height: 8"
  • Folded:
    • Length: 9-1/2"
    • Width: 8-3/8"
    • Height: 2"

Weight Capacity:

  • 6,000 lbs per block

Included:

  • (2) Flap Jack blocks
  • Zippered carry bag

Warranty:

  • Limited lifetime warranty


WSFJ-2 Weigh Safe Flap Jack Collapsible Trailer Jack Support - 8" Tall - 6K - Qty 2

Installation Details WS78ER Installation instructions


California residents: click here


Ratings & Reviews

5.0

8 reviews
What folds flat like a pancake for easy storage, unfolds in seconds, and comes with a carry bag for easy transport? The Flap Jack! These durable jack blocks provides a stable base for your trailer, RV, or camper, making setup quick and hassle-free.

by:



by:

They work great. No space used hardly when storing easy setup. Best jack block I’ve seen yet



by:

We are amazed how compact and light this item is - especially when compared with our previous tongue block. It appears to be very well-constructed and sturdy, although we have not yet had the opportunity to test it with our travel trailer.



by:

This is something that I was needing for a long time. I don’t have the space for the Anderson jack blocks and I had to carry wood blocks in the back of my truck for my trailer. Now I can store them in the trailer. They are very easy to set up and use.



by:

Thanks Etrailer for fast shipping and delivery, little bit of a puzzle to setup at first but got the hang of it pretty quick. Heading out this weekend so will try them out, looks to be high quality product.



by:

Product is great, but the delivery driver left the package on the bottom step and it was raining only about three more steps and it would have been on the porch not out in the rain.



by:



by:


8
8

See what our Experts say about this Weigh Safe Camper Jacks

Do you have a question about this Camper Jack?


Info for this part was:

Employee Lindsey S
Edited by:
Lindsey S
Employee Jameson C
Expert Research:
Jameson C
Employee Andy C
Installed by:
Andy C
Employee Kim H
Written by:
Kim H

At etrailer.com we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.


<