These came with a set of Big Jon downriggers I purchased and I love them. I Had a downrigger cable break off at the termination so I lost my clip, band buster, and ball to the deep. I considered replacing it with a mechanical release, but it's just so simple. Wrap the band around the line, hook it on the release and you're fishing! I especially like the rod reaction to a hit, especially with a smaller fish. The rod will bounce around when a fish strikes, so you know something is happening. Many times we'll see the rod start to dance and be ready to go when the band releases.NOTE: if you use braid, you need to put a loop in the braid and fasten the band through the loop or it will slide. I just wrap the line twice over two fingers an then slide the band between my fingers to attach it. The loop usually breaks the band off of the line while you're fighting the fish.