The buckle is fine, but the webbing is so thin and weak that it is difficult to get it through the buckle. Even if you get it in rolls and knots in a buckle. Pretty much rubbish. Spend more and get a thicker polyester strap.
Pros
High Tenacity Webbing - AWELCRAFT high visibility neon webbing, made from strong polyester fibers, with a breaking strength of 200lbs, a maximum breaking strength of 600lbs.