Improved Aquatic Safety Safety lock and attached locking mechanism prevent accidental openings in water, helping keep children safe during swimming. Stable Grip Nonslip texture increases handheld friction for a secure, controlled grip, enhancing safety and confidence when riding the kick board. Adjustable Buoyancy Three modular layers allow for adjustment of hydrodynamic thrust through different combinations. Delicate Touch Hypoallergenic material with resilience creates a soft surface that prioritizes comfort, suitable for extended play without skin discomfort. Use scenarios Beginner swimming lessons: add or remove layers to provide more buoyant support as the child learns kicks, balance, and breathing control, then adjust as skills progress. Pool play and practice: the combination of a secure grip and soft surface reduces slippage and skin irritation during longer sessions. Family pool time: configure buoyancy for children of different ages and abilities to ensure safe, enjoyable swimming experiences.