New Improved Dual Layer Foam Infills (1 pair) for

Beyerdynamic Improved Foam Infills discs.
Grey on the inside, black on the outside.
Pack contains 2 discs.
 

Fits:
Amiron home / Amiron wireless
CUSTOM ONE PRO (PLUS) / CUSTOM STUDIO
DT 1770 PRO DT 1990 PRO
DT 440 / DT 440 Edition
DT 511 / DT 531
DT 660 / DT 660 Edition
DT 770 / DT 770 alt / DT 770 Edition / DT 770 M / DT 770 PRO / DT 770 PRO HT / DT 790 / DT 797
DT 811 / DT 831 / DT 860 / DT 860 Edition / DT 880 / DT 880 alt / DT 880 Edition / DT 880 PRO / DT 880 PRO HT
DT 911 / DT 931 / DT 990 / DT 990 alt / DT 990 Edition / DT 990 PRO
HS 200 / HS 300
MMX 300 / MMX 300 (2nd Gen)
T 70 / T 70 p
T 90

New unique part from Oct. 2025: 1000953