1、ALUMINUM ALLOY: Made from premium aluminum alloy, this ear equalizer training tool is lightweight yet durable, offering exceptional longevity. Its ensures corrosion resistance and long lasting performance. 2、ENHANCED GRIP WITH GROOVES: Designed with grooves in the middle, this training tool improves your grip, providing a more stable and secure hold during underwater training. Enhance your control and confidence while practicing diving skills. 3、DUAL CLEANING SYSTEM: Our underwater training tool features a dual flush system at the intake port, ensuring thorough cleaning of the airway. This helps maintain a clean and hygienic respiratory passage, improving safety and comfort during long dives. 4、EAR EQUALIZER: Specifically developed for free divers, this ear equalizer assists in mastering balance techniques on land. Improve and fine tune your ear equalization skills to enhance your performance and comfort during deep dives. 5、PROFESSIONAL DIVING EQUIPMENT: This versatile ear equalizer assistive training tool is an essential addition to any diver's gear collection. Whether you're a beginner or an experienced diver, our product provides the necessary support and training opportunities to enhance your skills and stand out in the underwater world. 1 x Ear Equalization Training Tool Item Type: Ear equalization training toolMaterial: Aluminium alloyWeight: Approx. 47g / 1.7oz