The Danielson Rubber Bobber Stops are ideal for punch rigs, slip floats and adjustable sinker rigs. Easy-to-use, simply run the line through the wire loop and pull the stop onto your line. The Danielson Rubber Bobber Stops’ soft rubber construction ensure they grip your line securely without crimping or causing damage, and their egg shape design also allows them to cast easily through standard rod guides, and even wind onto your reel without interference. Danielson – Delivering Quality Fishing Tackle since 1943.