Welcome to our shop Introducing our Aquarium Air Pump Accessories for Standard Air Tubes. These accessories are perfect for enhancing the performance of your aquarium air pump. Made of soft plastic, the air tube is durable enough to withstand wear and tear, ensuring long-lasting use. It is transparent, very light, and smooth, making it easy to hide and mix into your aquarium. The 5m long white oxygen tube has a standard inner diameter of 4mm, making it compatible with most standard aquarium air pumps and air stones. Not only is this air tube practical, but it is also safe for your fish. It is made of non-toxic materials, ensuring that it will not harm your aquatic pets. In the scope of delivery, you will receive 1 white oxygen tube that is 5m long, with an inner diameter of 4mm. Note: 1. Please allow small size error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard. (Customer satisfaction is our top priority. If you find any product problems after receiving the goods, such as damage or incorrect quantity, please contact us immediately. We will try our best to provide you with satisfactory after sales service) Thank you for meeting me.I hope this helps you. Wish you a happy life. Upgrade your aquarium air pump with our high-quality air tube accessories. Order now and enjoy a healthier and more vibrant aquarium environment