Reusable accessory set. The comfort softtube length is about 5.48 feet. The external diameter of the connection is 4.72 inches, the internal diameter is 2.36 inches. The package includes 1Mouthpiece,1 Cup and 1 Tube. PVC material. It is individual packed with PE bag. Please do not use it if the package is damaged when you receive it, you can fell free to contact us, we will do our best to help you.