for Starkey Hearing Aid Wax Guard Filters Hear Clear Removal and Replacement Cerumen Schutz Cleaning Tool Accessories 40-Pcs

Q: Will they fit Philips hearlink ?

Sorry, this may not work. We suggest you another item. Please search the ASIN# B08YKBHBYR or go to the link: https://www.amazon.com/dp/B08YKBHBYR?ref=myi_title_dp

Q: Does this would it work hear USA brand hearing aids ?

I have made in USA Starkey hearing aids and these filters work well.

Q: What are they made of ?

Sorry for the delay. The actual ear wax replacement (white tips) are a hard plastic, non irritating to the ear and easy to apply to the hearing aid. I really like the ease of replacement