Kadee #636 HO, HOn3 Scale Centering Spring for Split Shank Couplers
Centering Spring (for #711, 712, 714 & 715 Split Shank Couplers)
Precision Engineered Coil Metal Centering Springs for #711, #712 3/4 size HO-Scale and #714, #715 HOn3-Scale Split Shank Couplers.
