Shooter Monofins Short and stiff fiberglass blade Great for improving flexibility in the feet and ankles Ideal for competitive swimmers who want to develop quick and powerful butterfly kick Simulate race-pace kicking and tempo while working abs, lower back, quads and glutes; Use for long distance butterfly training, breaststroke drills and backstroke underwater work Please Note: Each Monofin's paint may be unique, as they are similar to another fin models' mold. Therefore, their paint may not be completely symmetric on the actual fin.