Since you can tie as many butterfly knots as you like on one line, the loop is an easy way to provide several anchors for any given reason. This can be particularly helpful for search and rescue ...

making it perfect for various applications such as rescue situations or securing items. Figure eight knots provide strong and reliable loops, often used in climbing and sailing. The easy-to-tie ...

Above all though it is indispensable if you need to rescue your partner on a multi-pitch climb ... The mule knot is also sometimes referred to as a releasable knot. - For added security tie a safety ...