Features The design is novel, simple and practical, easy to install, small in size and durable. The green impeller is easy to observe and is often used in computers or other water cooling systems. This flow indicator is used to observe the water flow rate of the water cooling system in case the pump stops working and causes overheating. In addition to watching the water flow, it is also a great and refined decoration. Standard threads are widely available for most computer cooling tubes or connectors. Features: -The design is novel, simple and practical, easy to install, small in size and durable. -The green impeller is easy to observe and is often used in computers or other water cooling systems. -This flow indicator is used to observe the water flow rate of the water cooling system in case the pump stops working and causes overheating. -In addition to watching the water flow, it is also a great and refined decoration. -Standard threads are widely available for most computer cooling tubes or connectors. Specifications: Material: Tungsten alloy Thread Standard: G1/4"Quantity: 1pc Package Includes: 1 x Water Flow Indicator Package List