8 pcs: 4 Small / 4 Large Clear Double (2 Layer) Flange Earbuds Eartips Set Compatible with Shure SE110, SE115, SE210, SE315, SE420, SE425, SE530 PTH, SE535 in-Ear Stereo Earphones Headset

sure earphones features sound isolating technology that blocks background noise so you can hear music and movies clearly a proper fit is essential to optimize sound isolation bass response and comfort during extended wear if you don't get a good seal outside noise will leak in and bass response will be greatly reduced to get a good fit select the sleeve that best fits your ear because everyone's ears are different every sure earphone comes with a fit kit containing sleeves and small medium and large sizes some models come with sleeves in different form factors and materials such as foam rubber and triple flank there are dots on the back of the black foam sleeve that indicate the size to remove a sleeve hold the earphone body and firmly twist and fold the sleeve off if necessary try using a tissue or cloth for better grip push the new sleeve onto the nozzle as far as it can go for more i