Specification 1 Material Foam Silicone2 Size 185 135 85Memory Foam Diameter Large outer 12 95mm inner 5 0mmMiddle outer 12 6mm inner 5 0mmSmall outer 10 8mm inner 5 0mmSilicone Earbuds Diameter Large outer 12 58mm inner 4 56mmMiddle outer 12 6mm inner 5 0mmSmall outer 10 8mm inner 5 0mm3 Color BlackRed5 Compatibile most earphone nozzles from 4mm 5 5mmFeatures Memory Foam 1 Self stretch deformation filling all the space and maintain the shape 2 Absorb the impact force reduce the vibration low rebound release 3 Never allergies non toxic no side effects 4 Transparent foam hole structure good air permeability Advantages 1 Comfortable and convenientAfter the memory foam tips ear foam cotton being activated by warm it will be filled with different structures of ears canal space and the ear canal and will not produce inflation congestion and other discomfort Not only no need to worry about falling down for the loose but also not produce pain due to inflation It is also a very convenient wearing when doing sports 2 Enhance the music effectMemory foam tips ear foam cotton can produce the seal in the ear canal so that music is almost no loss to reverberate in your ear canal feeling different 3 Noise isolationThe seal can isolate the external noise interference even in noisy environment without increasing the volume up to over the noise which can protect your ears Silicone Earbuds 1 Thinner earbud edge more softly to wear and stronger noi