Seat Belt Tension Adjuster (2-Pack)

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Give yourself some slack - with the Seat Belt Adjuster!

This easy-to-use seat belt adjuster allows you to control the tension of your seat belt and can be adjusted to fit any individual. This useful device moves the seat belt off of your neck to end irritation, chafing and discomfort. It can even prevent clothing from wrinkling under the seat belt.

The Seat Belt Tension Adjuster works by attaching to the top of your seat belt by creating slack without compromising safety.

The Seat Belt Tension Adjuster comes in packs of two so you'll have one for the driver and passenger or an extra for a second vehicle.


View a video on how to install the Seat Belt Tension Adjuster below in the video section of this page.

After buckling your seat belt:

1. Separate the top of the adjuster from the bottom by holding both pieces and sliding them in opposite directions.
2. Position the Seat Belt Tension Adjuster on your seat belt strap where it retracts, with the red lock and flap facing you. Snap the top and bottom back together with the seat belt in between.
3. Slide adjuster towards the seat belt retractor, and pull the strap not more than one inch out, allowing only enough slack for your comfort.
4. Lock into position by sliding the red tab to the right. Unlock by sliding the red tab to the left or to re-adjust.

Read and abide by all instructions and warnings that come with this item. Consult your car owner's manual before use. Do not use in any fashion other than the intended fashion. Do not use if this item interferes in any way with your ability to drive. Read the full disclaimer here. Reseller of this item.

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  • 4
    Works as prescribed

    Posted by Jim on 27th Jul 2023

    Wish the two black pieces held tighter Together.

  • 4
    Seat belt adjuster

    Posted by Susan Forester on 20th Mar 2023

    Used these before and worked well. Too bad there isn't a way to not have the two parts not fall off when adjusting and lose under seat.

  • 5
    Seat Belt tension adjuster

    Posted by Patricia on 13th Apr 2022

    What a fantastic product. So easy to use. For any short big busted women who are tired of having your seatbelt cutting your neck this is the product for you. I used to put the shoulder belt behind my back because I felt if I got in an accident that the shoulder belt would break my neck. No more, I now ride comfortable without out fear able to finally use the seat belt as designated. I have no hesitation recommending this product.

  • 5
    Great product

    Posted by Al Barrera on 2nd Apr 2022

    The product works great on all four vehicles. Have used them for yrs.

  • 5
    The best thing ever!

    Posted by Darlene McClain on 9th Oct 2021

    I have these on all my vehicles! They are the best! Wouldn’t be without them.

  • 5
    tiens bien en place à comparer d'autres

    Posted by Céline S. on 3rd Sep 2021

    Je le recommande à tout le monde

  • 5

    Posted by TravCon on 15th Aug 2021

    Great product! Simple, cheap, and effective; plus, they give you 2 of them.

  • 2
    Not what I expected

    Posted by Kim Hensley on 4th Jun 2021

    I don't think these are very user friendly. You have to loosen it each time you take the belt off or put it on and with all the constant sliding, mine came apart and the red lever fell out. They are good when they are in position but too much fooling with each time for me.

  • 5
    Simple design yet highly effective

    Posted by Eric Leonard on 3rd Jun 2021

    Exceeds expectations!