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Front Derailleur:Shimano FD-4700 TiagraRear Derailleur:Shimano Tiagra RD-4700
Heavy duty material for heavy use
25 HP Johnson Drive System motor
Increase workout speed - Fitness Fins add extra propulsion to the stroke
This Glide Snorkel Set in blue is designed for young swimmers who want to explore underwater
Biofuse Fins Size:9-10 Front Derailleur:Shimano FD-4700 TiagraRear Derailleur:ShimanoBiofuse Training Fins create maximum resistance in the water. Maximum resistance means more workload on your leg muscles which means increased strength and Endurance. You'll also be able to go faster through the water as the fins add additional propulsion to your stroke leaving you free to focus on your technique. As the Biofuse Training Fins forces ankle extension during kicking, it helps to develop ankle mobility too for a more propulsive and