Effective water resistance: EVA foam combined with moderate water resistance helps maximize muscle endurance while maintaining steady stability during pool workouts. Wide accessibility features: Ergonomic curved design and widefit construction enhance usability and improve limb coordination for both water and land training activities. Versatile aquatic dumbbell: Supports yoga stability aid, reproduces kettlebelllike motions, and provides waterbased arm resistance for an integrated strengthcardio routine with depth adaptability. Antislip surface design: Skinfriendly material with rounded edges improves comfort, while density closedcell foam prevents water absorption to support safe aquatic exercise with good grip. Key specifications Material: EVA foam Surface: skinfriendly, antislip, rounded edges Foam technology: density closedcell Water exposure: moderate water resistance Fit: wide fit with ergonomic curvature Use: suitable for aquatic and dryland training across water and land activities Usage scenarios Poolbased workouts: Use for upperbody endurance and stability during aqua aerobics or resistancefocused pool sessions. Waterbased circuit training: Combine yoga stability, kettlebelllike motions, and arm resistance for a fullbody routine with depth adaptability. Crosstraining or rehabilitation: Employ in dryland mobility and strength routines to leverage the wide fit, grip, and stability advantages across environments.