Feature: 1. Effectively Sound Transmission: Our hearing aid earmold tube can effectively transmit sound, suitable for most hearing aids, you can buy it with confidence. 2. Improved Comfort: BTE hearing aids can become uncomfortable as the ear tube gradually hardens, so they need to be replaced to increase your comfort while wearing them. 3. PVC Material: Hearing aid tube is made of high quality PVC material which is not easy to harden and very durable for soft ear molds. 4. Size: Transparent hearing aid tube has an outer diameter of 3 mm, an inner diameter of 2 mm and a total length of 10 meters. Detailed size information facilitates your purchase. 5. Easy to Replace: No need to go to a hearing aid specialist to replace the tube, you can easily replace it at home, saving time and money for your convenience. Specification: Item Type: Earmold Hearing Aid TubingMaterial: PVCInner Diameter: Approx. 2mm / 0.08inOuter Diameter: Appprox. 3mm / 0.12in Length: Approx.10m / 32.8ft . Package List: 1 x Earmold Hearing Aid Tubing