The Double Snapper is designed for the retrieval of Rope Guides via a length of throwline - it looks too simple to be of any use - but anyone who owns one swears by them. Normally is takes four to eight times length of throwline to retrieve your Rope Guide or cambium saver - not so with the Double Snapper. ART have improved this latest model by providing a turned aluminum ferrule for attaching your throwline (previous versions had a hole for a knot). Set up correctly you will save yourself plenty of time - a 'must have' if you use a Rope Guide.