Material: Made from metal, this water flow indicator ensures long-lasting performance and reliability in your water cooling system Easy Installation: With its simple yet practical design, this flow indicator is easy to install into your water cooling setup. Its compact size ensures it fits seamlessly while offering long-lasting durability Efficient Flow Monitor: Designed to monitor the water flow speed in your cooling system, this device helps prevent overheating by alerting you if the pump stops working Enhanced Cooling Efficiency: Featuring an 8-blade impeller design, this liquid cooling flow meter significantly improves the cooling efficiency of PC water cooling systems Compatibility: Widely compatible with most computer cooling tubes and connectors, making it a versatile addition to your setup Specifications: Material: Metal Size Chart: Type A: Length: 4.1cm (1.61 inches), Diameter: 0.6cm (0.24 inches) Type B: Length: 4.1cm (1.61 inches), Diameter: 0.8cm (0.31 inches) Package Includes: 1 Piece Water Flow Indicator Note: Please allow slight measurement deviations of 1–2cm (0.39–0.79 inches) due to manual measurement