Iron slide buckles
The moving sliding buckles made of 4 mm, 5 mm, or 6 mm diameter bent iron rods. They are exceptionally strong and durable. These buckles come with a coating in shiny gold, silver, nickel, or antique copper colors. They are available in multiple sizes, ranging from 15 mm to 50 mm.
And why "moving"? Because the central rod responsible for securing the strap is not fixed but movable, ensuring the secure fastening of the bag strap length.
Their primary function is to provide adjustability to the length of bag straps.
Due to their material and straightforward manufacturing process, their cost is extremely favorable.