Side-release buckles are commonly used fasteners that consist of two interlocking parts. One part has a prong that fits into a slot on the other part, allowing for easy attachment and detachment. These buckles are often made from durable materials like plastic or metal, making them suitable for various applications, including bags, belts, and outdoor gear. The design of side-release buckles allows for quick and convenient use, which is why they are popular in outdoor equipment and pet collars. They come in various sizes and colors, catering to different needs and preferences. Their simplicity and reliability make them a favored choice for many products.