Water Spike Anchor – 16′ – 22′ BoatsPanther Water spike Anchor is made of 1/4″ plated steel. Features an intense amount of holding power. Completely collapsible for compact storage and incredibly lightweight. Designed for boats 16′ – 22′.Features:1/4″ plated steel constructionUnmatched holding powerCompletely collapsibleIncredibly light weight