Integrated training guidance from swimming experts - Designed with know-how from swim professionals to promote arm coordination and trunk stability during training. Optimized hand grip with six openings - Six grip openings allow flexible hand positioning in key zones, ensuring correct swimming technique for effective training. Safe progress for learning - Builds leg strength and improves body posture in the water. - Provides reliable buoyancy to support crawl (freestyle) and breaststroke practice, helping swimmers steadily improve performance. Safe and durable material - Made from highly elastic EVA that yields under pressure, yet reliably returns to shape and resists cracks. - Built for long-term, reliable use in children’s swim training. Usage scenarios - New swimmers learning proper arm movement and body alignment in freestyle or breaststroke during coach-led sessions. - Youth training drills that focus on leg strength and buoyancy to improve overall water stability. - Home pool practice with supervision to reinforce correct technique and track progressive performance gains.