1-1/2" Adjustable Slide Buckles

Put these on a heavy-duty canvas dog leash and the center bar adjusts smoothly even under tension. The rectangle shape locks into place without slipping, which was my main worry. Exactly what I needed for a custom-fit strap.

The sliding center bar is surprisingly smooth and easy to adjust, even with thick denim straps. I used these on a diaper bag to get a perfect fit, and they hold tight without slipping.

The moveable center bar locks the strap exactly where I need it, so no more constant readjusting on my backpack. It’s a simple design, but it works perfectly for fine-tuning the fit.