 Glad hands on end of airlines. |  Glad hands on end of airlines, joined to glad hands on end of trailer. |  Glad hands on end of trailer. |
|---|
A similar system, with one, larger, line, is used by railways.
Glad hands on end of airlines. | Glad hands on end of airlines, joined to glad hands on end of trailer. | Glad hands on end of trailer. |
|---|
A similar system, with one, larger, line, is used by railways.