The FAO Schwartz Build-a-Coaster 736 Pc Set Replacement Parts Bag 1 is a bag of parts from the Build-a-Coaster Set.  The contents of the bag are listed in the instuction manual and are:  62 - Rod F, 2 - Rod S. This particular STEM Building set was retired in 2022, making replacement parts hard to find.   This Bag 3 contains everything the FAO Schwartz Build-a-Coaster Building Set Original Bag 3 contained.  IT IS A COMPLETE BAG 3 OF REPLACEMENT PARTS.