*Adds resistance to legs during kick sets.
*Assits ankle recovery from breakstroke kick as well as adding resistance to abdominal muscles during dolphin kick.
*Also very efficient to develop strentgh during up movement in kick freestyle.
*Resistance depends on webbing color:
Silver (junior swimmers: female)
Yellow (junior, male )
Green (teen agers female)
Red (teen agers: male & senior female)
bleu: senior male
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