Fujinon Eye cups, Type 3 for 10x50 FMTR-SX and FMT-SX
Set of two
 
Compatible with:
 
Fujinon 10x50 FMTR-SX
Fujinon 10x50 FMT-SX
 
Original Fujinon/Fujifilm product
 
Directions to install:
Remove the old eye cup by twisting off counter-clockwise.
Install new eye cup by twisting clockwise until hand tight.