Robbox - Length Extension - 36"
SKU: 87599418352

Robbox - Length Extension - 36"

Sale price$124.72 Regular price$138.58
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Robbox - Length Extension - 36"The Robbox 36" Length Extension is a box beam level extension designed to expand the working length of your Sennses Pro Device in seconds. Available in multiple sizes, the extensions are precision machined on three surfaces and features magnetic removable end caps and a secure magnetic latching system that locks the Sennses Pro in place. Optional thumbscrew is also included for added security. The top surface is uninterrupted for easy marking, and

The Robbox 36" Length Extension is a box beam level extension designed to expand the working length of your Sennses™ Pro Device in seconds. Available in multiple sizes, the extensions are precision-machined on three surfaces and features magnetic removable end caps and a secure magnetic latching system that locks the Sennses™ Pro in place. Optional thumbscrew is also included for added security. The top surface is uninterrupted for easy marking, and features an imperial scale. A metric scale can be found on the bottom. Two precision calibrated bubble vials for level and plumb are incorporated for use without the Sennses Pro digital measuring device for added versatility.

Key Features

Quick and Easy Installation: Equip the Sennses Pro into the Length Extension in seconds with the positioning baseplate and magnets.

3-Surface Machined Body: Achieve unmatched precision and accuracy with three machined surfaces to use for your leveling applications.

Removable Magnetic End Caps: Remove end caps quickly and easily. Protects Extension frame and provides access to tight spaces.

Precision-Calibrated Bubble Vials: Gain enhanced flexibility with integrated bubble-level vials.

Imperial and Metric Ruler Markings: Take quick measurements quickly and easily with the uninterrupted imperial and metric ruler markings on the top and bottom surfaces, respectively.

Special Features

- Three-Surface Machined Aluminum Body for Ultimate Precision
- Removable Magnetic End Caps
- Three-Way Calibrated Bubble Vials for Added Versatility
- Magnetic Latching System with Optional Thumbscrew

- Easy-Grip Rubber Handles

 


Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 87599418352

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4.6 ★★★★★
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Verified Purchase
Kat and Cain
Massapequa, US
★★★★★ 5
Great
Works great, as long as you don’t lean of one edge too much
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
G
Verified Purchase
77' Granada
West Palm Beach, US
★★★★★ 5
Good roller
Sturdy and strong. Rolls smooth. I used it to put down sound deadener in my classic car. Sometimes you think cheap is cheap but this is a good one.
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Reviewed in the United States on April 12, 2026
S
Verified Purchase
shirley durham
Fort Morgan, US
★★★★★ 5
Great value great quality.
Very good quality made and very good price.
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Reviewed in the United States on May 26, 2026
K
Verified Purchase
Kev
Cuba, US
★★★★★ 5
Makes For Quiet Rides
Model: 10 SqFt(0.95 SqM)
Comparable quality and performance to name brand competitor. It sticks on strong, easy to apply, and does make a difference in sound reduction. Turn your hollow shell sounding vehicle panels into solid sounding walls.
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Reviewed in the United States on March 15, 2026
T
Verified Purchase
Troy Amhaz
Lake Worth, US
★★★★★ 5
Must for subwoofers. True 2mm spec. High quality.
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
Let me start of by saying WOW! This made a huge difference in the SQ of my L7S pushing 930w rms. Before I had major rattles in my 2020 Honda Civic SI. Taking the time to do this to my trunk and Lid made me realize just how loud my subwoofer actually is. It literally eliminated the rattles throughout my whole car. I still plan on doing this to my doors and rear deck but once I upgrade the speakers. I still have half of the box just doing the trunk and lid so 1 box of 36sf will be enough for most of the areas that need to get done. You may need a little more overall. This is true 2mm spec. Very sticky and easy to apply. It just take time to finish the work correctly and roll it down. It is not as heavy as I thought it was going to be. The size of the sheets are perfect for what you need to do. The value is on point for the quality. It does not rip very easily but you can cut it to size without any problems. Again, This is a must buy for anyone who is pushing 1000w rms or more.
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Reviewed in the United States on November 29, 2025

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