KINBOOFI Eartips use silicone, the eartips are soft and comfortable and close to ear canals. The new bowl-shaped design has a wider front opening design than ordinary silicone earmuffs, which can make the high frequency clearer and more beautiful. The inner diameter is 4.00mm, compatible with earphones with a nozzle diameter of 4.00mm-5.50mm. KINBOOFI Silicone Replacement Eartips for KZ ZS10 ZS10 PRO AS10 ZEX ZEX PRO DQ6 ZSN ZSN PRO X,CCZ MELODY COFFEE BEAN EMERALD,KBEAR KS1 KS2 LARK ROBIN KBEAR 07 EAR TIOS