Buckle Size = Webbing Width. It has 3 bar sliders which help the buckle to adjust easily. You can change the length of the strap when it's too long or too short.
3 Bar Slider Tri Glide Metal Buckles Belt Adjuster for Strap Webbing DIY Crafts
PLASTIC DELRIN 3 BAR SLIDES TRI GLIDE BUCKLES BLACK FOR WEBBING SIZE 20MM - 50MM
Plastic Delrin 3 Bar Slides Tri Glide Buckles for Webbing 20mm 25mm 40mm or 50mm
Adjustable Tri-Glide Sliding Bar Buckle for Handbag Webbing Strap DIY Crafts
Metal Leather Bag Strap Belt Adjust Tri-glide Pin Buckle Slider Rectangle O Ring
Tri Glide Buckles Metal Strap Adjuster Slides 20mm-50mm for Bag Belt Webbing