Replacement Ear Tips (W430) (5, 3 with Gel Tips)
These earpieces have small rubber washers on them, when you insert the eartip into the headset you should be able to turn the eartip and lock it into place.
TIP: If the washer has fallen off it will not lock into place.
POLY 66935-05, Cushion/ring set, Black, Transparent
POLY 66935-05. Product type: Cushion/ring set, Product color: Black, Transparent