1. Heavy Duty Plastic tri-glide Sliders.
All sizes of plastic tri glide sliders are all heavy duty tri glide slide buckles. These tri glider sliders can withstand the below pulling force.
1) tri glide sliders 5/8 inch can withstand 42 lbs(19 kgs) .
2) tri glide sliders 3/4 inch can withstand 68 lbs(31 kgs) .
3) tri glide sliders 1 inch can withstand 70 lbs(32 kgs) .
4) tri glide sliders 1-1/4 inch can withstand 86 lbs(39 kgs).
5) Tri glide sliders 1-1/2 inch can withstand 108 lbs(49 kgs) .
6) Tri glide sliders 2 inch can withstand 174 lbs(79 kgs) .

2. Includes multiple sizes.
You can find : 0.625 inch tri-glide slides , 0.75 inch tri-glide slides, 1 inch tri-glide slides, 1.25 inch tri-glide slides, 1.5 inch tri-glide slides, 2inch tri-glide slides.

3. Please measure the width of strap and webbing before buy.
When the strap's width is 5/8 inch(15mm), Please choose 5/8 inch tri-glide sliders.
When the strap's width is 3/4 inch(20mm), Please choose 3/4 inch tri-glide sliders.
When the strap's width is 1 inch(25mm), Please choose 1 inch tri-glide sliders.
When the strap's width is 1-1/4inch(32mm), please choose 1-1/4 inch tri-glide sliders.
When the strap's width is 1-1/2inch(38mm), Please choose 1.5 inch tri-glide sliders.
When the strap's width is 2 inch(50mm), Please choose 2 inch tri-glide sliders.

4. People also call it.
plastic tri-glide slide, strap adjuster, tri glide slider, adjustable slide buckle, tri glide, strap sliders, webbing tri glide, tri glide slide buckles, plastic bar slider, plastic slider,
slide buckle, webbing slider, tri glider slide, adjustable slider buckle, bra slide adjuster. Sizes include 5/8", 3/4", 1", 1.25",1.5", 2".