Feature[ Strong & Comfortable Material ] Outer strong memory foam and Inner silicone tube.There is a buckle inside to hold tightly with earbuds. Break Strength is over 10 lbs. Rebound time is over 60 seconds which is much better than 99% market normal foam
[ Enhance Sound Quality ] The memory foam tips noise isolation offers superior audio experience enhanced bass and good seal block out external noise.
[ Packing List ] 3pairs/pack with S.M.L size . One pair for each size.