Features: 100% brand new and high quality 3 Size and 6 Pairs: Include 3 size ,3 pairs foam tips and 3 pairs silicone tips, you dont need to worry about the compatibility with your ear. You can choose the size freely, also, you can choose foam or silicone tips based on your requirements. Self-stretching decomptiable withmation, filled with space and keep shape Absorb the impact comptiable withce, reduce vibration, low rebound release No allergies, non-toxic, no side effects Transparent cell structure, good ventilation Comcomptiable withtable and convenient: After the activation of the body temperature memory earplugs (ear cotton), will be filled with different structures of the ear canal space, and ear canal anastomosis, and will not produce inflation, congestion and other discomcomptiable witht. Do not have to worry about loose and fall, but also because of inflation and pain. Sports wear is also very convenient. Enhance the music effect: Memory earbuds (ear cotton) in the ear canal produce a seal, so that music is almost no loss to reverberate in your ear canal, feel different. Isolated noise: Sealed from the interference of external noise, even in a noisy environment without increasing the volume to cover up the noise, care of your ears. Material : Foam, Silicone Memory Foam Diameter: Large: outer 12.95mm ;inner 5.0mm Middle: outer 12.6mm ;inner 5.0mm Small: outer 10.8mm ; inner 5.0mm Silicone Earbuds Diameter: Large: outer 12.58mm ; inner 4.56mm Middle: outer 12.6mm ;inner 5.0mm Small: outer 10.8mm ; inner 5.0mmincludes:6 x Memory Foam 6 x Silicone Earbuds About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks comptiable with your cooperation and we'll make you feel satisfied.