- Unique design with two usage modes: the cartoon shark fin float can be used by opening it and bending over it for support, or by closing it and wearing it behind the back as a fin. - Supports swimming performance: scientifically optimized to help swimmers achieve better performance, suitable for different water environments and swimmers with varying skill levels. - Safe and durable material: made from environmentally friendly EVA, safe and odourless. Thickened construction for durability, not easy to break or deform, very light, and provides a comfortable and stable grip. - Easy to assemble and use: the board is divided into three parts, connected by two black buckle straps. Simply tighten the straps to close into a shark fin shape. Wide straps enhance comfort. - Practical use scenarios: - Pool training for beginners: wear behind the back to provide buoyancy while developing kick technique and comfort in the water. - Family learning and recreational swimming: attractive shark fin design adds fun while helping children stay buoyant and confident. - Practice in varied water environments: suitable for different pools and water conditions, supporting stability and propulsion for swimmers at different levels.