These are Kadee?« #242 Magne-Matic?« Universal Black Boxes

FEATURES: Precision engineered to work with all Kadee?« "WHISKER"
Couplers (KADU0148) and NO.5?« (KADU0005), #58 (KADU0058),
#118 (KADU0118), 20-Series Couplers, 40-Series Couplers and
150-Series Couplers.
Snap-together insulated gear boxes and lids.
Made in the USA.

INCLUDES: 10 Pair

REQUIRES: Assembly
Couplers

SPECS: Scale: HO 1:87
Kadee
Part KAD242