Simplify the following text for a Grade 8 native English-speaking person.
Original: Stainless steel and titanium mouthpieces hold many advantages to the classic brass mouthpiece , including , anecdotally , a much more centered feel and sound , as stainless steel and titanium do not absorb as many vibrations as brass ; they require much less care ; etc. , but they are much more expensive ( titanium mouthpieces run up to about $ 400 each ) .
Simplified: Two of the newest things mouthpieces can be made out of are stainless steel and titanium .