EFFICIENT UNDERWATER COMMUNICATION - Ensure your dive buddy always hears you with the Mares Magnetic Shaker; With its special magnetic system, this scuba diving signaling device is perfect for alerting your companions during dives

· EASY TO USE - Flip to mute unwanted noise and shake harder to signal with precision; Shaking this underwater safety device moves the ball bearing, creating a loud echo sound underwater; The magnet blocks the metal ball from making continuous annoying noises

· COMPACT & LIGHTWEIGHT DESIGN - Crafted from lightweight and durable aluminum, this diving noise-making shaker is easy to carry and store; The sleek design is especially useful for divers on the go, offering an attention-grabbing solution for underwater signaling

· RELIABLE TOOL - Engineered with high-quality materials, this signaling device withstands the challenges of multiple dives; The sturdy build ensures consistent performance, making it a dependable diving kit item

· VERSATILE APPLICATION - This magnetic rattle noise shake stick is an essential underwater communication tool for diverse needs; A great way of signaling for help in an emergency, this device is a must for professional diving instructors, marine researchers, rescue teams, or recreational divers