Nylon + metal dust filter to provide dust perfectly. IPX5 degree waterproof. Perfect match with earphone sound tube.
Packing list : 5 pairs metal dust mesh + 5 pairss nylon dust mesh + tweezers.
Easily to installment : Please check the video first.
Replacement process: 1) take off the old dust mesh by tweezers and clean the earbud tube. 2) Pick off the dust mesh by tweezers . 3) Paste dust mesh on earbud tube then press several times.