Kadee #850 O Scale Centering Springs for All O Scale Couplers
O Scale Centering Springs for All O Scale Couplers.
O Scale Precision Engineered Metal Centering Springs For All O-Scale Couplers
(#740, #742, #743, #745, #746, #747, #800, #801, #804, #805, #806, #816 & #812 Coupler Height Gauge)
