Shark-Head Water Helmet** Description (≤800 chars): This 3D model presents a sleek water helmet shaped like a shark’s head, designed for underwater exploration or futuristic aquatic gear. The outer shell forms a streamlined shark profile with a curved snout, smooth ocean-blue surface, and glossy white underside. The visor replaces the mouth area, made of transparent reinforced glass tinted lightly in aqua. Along the top, small fin-like ridges add hydrodynamic detail, while the back features a compact water-filter unit with glowing blue vents. Subtle metallic edges outline the jaw and gill shapes, giving the helmet both style and functionality. The design blends marine aesthetics with high-tech equipment.