NEW BEE 6 Pairs S/M/L In Ear Memory Foam Silicone Ear Tips Noise Blocking Earbuds Caps - Black ?Suitable for all sizes of ear canals,breathable,soft and comfortable ?Before putting it in the ear,press the memory foam ear caps to the minimum (about 5 seconds of rebound time,the longer the rebound time,the better the quality of the memory foam),and then put it in the ear. The sponge will expand slowly and fill up according to different ear canals ?Memory foam ear caps have a certain sound insulation effect than ordinary silicone ear caps. They are close to the ears,making the music rebound in your ears and enhancing the bass effect ?Come with a storage box,which can extend the life of the ear cap ?Specification: ?Material: memory foam,silicone ?Net weight: 5g(6 pairs) ?Compatible: 5mm-6mm earphones (4.5mm inner diameter ear caps are compatible with 4.5mm-5.5mm earphones) ?Size: ?Memory foam ear caps: ?L: outer diameter 13.4mm,inner diameter 4.9mm ?M: outer diameter 12.5mm,inner diameter 4.9mm ?S: outer diameter 10.6mm,inner diameter 4.9mm ?Silicone ear caps: ?L: outer diameter 13.8mm,inner diameter 4.56mm ?M: outer diameter 12.6mm,inner diameter 4.56mm ?S: outer diameter 10.8mm,inner diameter 4.56mm Package included: ?3 x Pairs of Memory Foam Ear Caps(S/M/L) ?3 x Pairs of Silicone Ear Caps(S/M/L) ?1 x Storage Box ?Other items not include