Tamiya item 54042 - 40.7mm Titanium Coated Piston Rod 2 pcs TRF501X Hard Titanium Coated Piston Rod F OP-1042 TRF201
54042 RC 40.7mm Titanium Coated - Piston Rod 2 pcs TRF501X Hard Titanium Coated Piston Rod F OP-1042 - Tamiya
Titanium coat protects piston rod from dust and debris for consistent, smooth movement.