1. Transparency, Easily Observable Fluid: This flexible PVC hose is made of transparent vinyl material, clearly displaying the fluid flow state, facilitating monitoring and maintenance. It is ideal for applications requiring precise observation, such as aquariums, water pumps, laboratory equipment, etc. 2. Multiple Outer Diameters Available: Available in three outer diameter sizes—7 mm, 8 mm, and 9 mm—to meet the requirements of different equipment interfaces or fluid pathways. The inner diameter is precisely matched, offering strong compatibility for various scenarios, suitable for both private and professional use. 3. Soft and Durable, Easy to Bend: flexibility, easy to cut and bend, and adaptable to various corners and tight spaces. quality PVC material provides wear resistance, pressure resistance, and antiaging properties, ensuring durability and resistance to breakage. 4. Wide Range of Application Scenarios: Suitable for aquarium oxygen supply lines, air pump connections, water cooling circulation systems, laboratory fluid delivery, DIY crafts, model building, etc., offering practicality and flexibility. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-DIMEANI official store