1. Rather robust and durable.
About these plastic buckle clips 5/8 inch, 3/4inch,1 inch,1.25inch,1.5inch and 2 inch, All passed 5000 tensile tests. The pulling force that each size plastic buckle clips can withstand is as following.
Plastic buckles 1/2 or 5/8 inch: 20 kgs(44 lbs).
Plastic buckles 3/4 inch: 25 kgs(55 lbs).
Plastic buckles 1 inch: 35 kgs(77 lbs).
Plastic buckles 1 1/4 inch: 45 kgs (99 lbs).
Plastic buckles 1 1/2 inch: 48 kgs(105 lbs).
Plastic buckles 2 inch: 80 kgs (176 lbs).
These plastic buckles are very strong and durable, Called heavy duty/Military grade plastic buckle clips.

2. Dual-side Adjustable And Don't need Sewing:
The regular side release plastic buckles require you to stitch one of them in place, Dont need sewing with These plastic buckles 0.75inch/1inch/1.25inch/1.5inch/2inch.
And You can adjust the strap's length on both sides of These plastic buckles.

3. Easy to install.
These plastic side release buckle clips attach easily to web straps without the need for sewing.

4. Simple to use:
As backpack replacement buckles, The plastic buckle clips dont twist when buckling or un-buckling. Simple to use.