Package includes parts for two pairs of assembled couplers in gearboxes:
* 4 each #808 plastic couplers and #808 plastic gearboxes with lids
* Centering springs (6 each #846) and 2 extra knuckle springs (#847)
* Mounting screws: 8 each 0-48 x 3/8 and 0-48 x 1/4 screws
PLEASE NOTE: Item listed is for use with scale models and is not a toy. It may present a hazard for younger children. Recommended for ages 14 years and older.