Ergonomic 6-hole swim trainer for children — strengthens core, refines arm coordination, and builds leg power with durable EVA construction for regular pool use Key benefits Improves swimming posture and efficiency: the 6-hole ergonomic design offers multiple grip positions to encourage correct hand placement, targeted hand-zone activation, and a better waterline. Builds core stability and arm coordination: developed from practical coaching experience to help children hold a stable trunk and coordinate arm movements while learning or refining technique. Develops leg strength and body balance: stable buoyancy supports focused practice of freestyle (crawl) and breaststroke kicks, allowing controlled, effective leg and balance training. Long-lasting and safe for regular use: deformation-resistant EVA material yields slightly under load to absorb pressure, and resists cracks or loss of shape so the trainer stays reliable through repeated pool sessions. What it does and how it helps Function: provides adjustable hand positions through six holes to promote correct stroke mechanics and body alignment; offers predictable buoyancy to isolate leg or core work depending on the exercise. Who it’s for: designed specifically for children learning or improving freestyle and breaststroke technique, suitable for swim lessons, club training, and at-home pool practice. Why it stands out: the combination of an ergonomic multi-grip layout and robust EVA construction gives both technical benefit for coaches and practical durability for frequent use. Material and performance Material: deformation-resistant EVA that yields under pressure but maintains overall shape and durability. Performance: stable buoyancy for controlled drills, resistant to cracking and deformation from regular water use. Practical use scenarios Swim lesson drill: coach assigns hand-position progressions using different holes to teach proper entry and catch, while the child focuses on arm timing without losing balance. Technique-focused practice at home: child uses the trainer to isolate kick and core control during freestyle or breaststroke repetitions to build leg power and streamline position. Club training session: swimmers perform targeted sets using varied grip positions to refine hand zones and improve overall water position under supervised training. Compatibility and sizing Intended for children and for use in pools during standard swim instruction and practice. Compatible with freestyle (crawl) and breaststroke technique work; integrates with common drill sets and coaching progressions. Pick this trainer when you want a durable, coach-informed tool that improves posture, arm coordination, and leg power for children while standing up to regular pool use.