The MkII swinger still remains one of the most popular indicators and features a light reactive head, stainless arm and a sliding collar weight that can be adjusted to provide perfect counterbalance for side winds and undertows. The indicator head features interchangeable isotope lens covers in clear or coloured material. The line gate system was the first of its generation to feature the minimum friction style design that allows line to flow freely and yet springs open when the rod is picked up.