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- Train hard with this 4.5 diameter Dolfin kickball in blue. It encourages proper body positioning, engages core while allowing for full hip rotation. Ideal for one-arm kicking, and it’s the only device on the market that corrects knee positioning through breaststroke kick cycle.
- Encourages proper body positioning and streamline.
- Engages core and allows for full hip rotation
- Ideal for one-arm kicking.
- Competitive swimming training aid