- Core Strength Development: Built on practical coaching insights, it enhances core stability and coordinates arm movement for more controlled swimming. - Innovative Swim Training: The ergonomic six-hole grip design allows different grip positions to promote proper posture, target specific hand zones, and improve overall body alignment in the water. - Muscle Development: Provides stable buoyancy to support leg strength and balance during freestyle and breaststroke practice, enabling safer, more effective training for children. - Durable Material: The deformation-resistant EVA structure maintains flexibility under load, resists cracks and shape loss, and withstands regular pool use for safe kid swimming sessions. - Use scenarios: - In a structured lesson, instructors use it to guide posture and kick timing during freestyle and breaststroke drills. - At home pool practice, children perform grip-position and posture drills to reinforce hand activation and body alignment. - In group training or camps, it provides reliable buoyancy to support leg-strength workouts while maintaining safety.