As seen in picture one a brand new 5 Amp thermal-sealed circuit breaker with self-adhesive foam backing for mounting where you need it.  Also included 2 quick disconnects either insulated as shown in picture or uninsulated depending on stock. The breaker trips quickly and is self resetting.  No need to worry about the breaker coming loose as the foam backing can hold up to several pounds and the breaker only weighs a few grams. This breaker works well on most post war (1945-1969) Lionel transformers.  Some but not all of the transformers this works well on are: 1032,1033,1034,1042,1044,1053,1063,1073, TW (you will need 2),S,Q,A,R,LW and RW.  We also sell other transformer parts such as L power cords, diodes, binding post nuts, binding posts, lens caps, bulbs, carbon rollers and rivets, handles and many other parts. Thank you for looking.