APPLY TO - Suitable for various DIY craft projects to adjust fastening accessories such as belts, bag straps, belts, luggage straps and other clothing accessories. Works with almost any material: leather, fabric, paracord, cotton, nylon, or webbing.

ADVANTAGE - Made of iron, high strength, durable and wear-resistant; electroplated surface treatment, bright and elegant appearance, anti-rust and anti-corrosion, practical and good decorative, can be used for a long time.

INSTALL: Thread the strap through the opening on one side of the roller buckle ring, through the roller, and then through the opening on the other side. Pull the strap through the roller buckle ring to adjust the length, and then pass the pin of the roller buckle ring through the strap hole to secure the strap.