What it does and why you need it Designed with swim-expert input to accelerate skill development: promotes arm coordination and core stability so children learn efficient stroke mechanics faster and safer. Provides reliable support for technique-focused practice, reducing compensatory movements and making lessons more productive. Key benefits Improved grip and stroke precision: ergonomic 6-hole structure with targeted grip zones guides correct hand placement and supports precise swimming motions. Builds strength and balance: stable buoyancy aids focused practice of freestyle and breaststroke, developing leg power and whole-body balance for controlled, effective training. Durable, safe construction: deformation-resistant EVA material flexes in a controlled way under load, resists tearing and shape loss during regular pool use. Important attributes Function: training aid that stabilizes buoyancy, reinforces correct arm positioning, and encourages core engagement during swim drills. Compatibility: intended for children's swim training and instructor-led lessons; supports freestyle and breaststroke practice without changing stroke mechanics. Material and performance: robust EVA structure engineered to hold shape, absorb load predictably, and withstand frequent water exposure. What makes it stand out Coach-informed design: ergonomic holes and grip zones reflect practical training needs rather than a generic float, improving learning efficiency in the water. Controlled support—not overpowering buoyancy—so children engage muscles rather than rely entirely on flotation. Long-lasting construction suitable for regular training use in pools. Typical use scenarios 1. Instructor-led swim lessons: use during drills to correct hand placement and maintain core alignment while teaching freestyle or breaststroke techniques. 2. Home pool practice with supervision: reinforce coach-taught movements and build leg strength through focused repetition in short practice sessions. 3. Swim school skill progression: integrate into structured drills to move from assisted to independent strokes while tracking improvements in coordination and balance. Practical points for buyers Intended for children’s swim training; use only under adult or instructor supervision. EVA material is water-resistant and designed for frequent pool use; rinse and air-dry after sessions to preserve performance.