Knuckle Spring all Kadee® HO couplers Except #58, #78, #178, #711, & #2100 #622 Knuckle Spring Precision engineered metal Knuckle Spring for all Kadee® delayed action HO couplers. (Except #58, #78,#178, #711, & #2100) One dozen per package

#622

HO-Scale Knuckle Springs

1 Doz

$1.35