This set of eartips contain three pairs of Memory Ear Tips. Eartips of each material are in different sizes: small, medium and large. It is very comfortable and convenient: After the memory tips being activated by warm, it will be filled with different structures of ears canal space. No need to worry about the earbuds slipping out of your ears nor pain due to inflation. Pretty comvenient and comfortable for usage when doing sports. Features - Color: Black - Material: Silicone - Size: 9mm(S); 11mm( ); 12MM(L) - Superiority of Memory Eartips: Self-stretch deformation, filling all the space and maintain the shape; Absorb the impact force, reduce the vibration, low release; Transparent hole structure, good air permeability. - Comfortable and convenient: After the memory tips (ear cotton) being activated by warm, it will be filled with different structures of ears canal space. - No need to worry about the earbuds slipping out of your ears nor pain due to inflation. Pretty comvenient and comfortable for usage when doing sports. - /Noise isolation: The eartips perform excellently on producing seal in the ear canal, so that almost no loss to in your ear canal; The seal can isolate the external noise interference, even in noisy environment, without increasing the volume up to over the noise, which will protect your ears. Package list: 3 x Pair of Insulation Tips for In-Ear Earphone Headset Earphones Enhanced Bass Ear Pads (Black)