The Salvimar Ballast Freediving Neck Weight is made of high-quality lead and coated with a layer of soft rubber to ensure maximum comfort during use. Easily adjustable thanks to its slight deformability, it fits perfectly around the neck. The design is crafted to ensure even weight distribution, promoting a stable and balanced posture that reduces muscle fatigue during underwater activities. The rubber coating protects the lead from wear and corrosion, ensuring long-lasting durability even in saline environments.