The EF81 type is an electric locomotive that was introduced in 1968 and is compatible with direct current and 50Hz and 60Hz alternating current. From the 137th onwards, vehicles with a awning on the front window were introduced, and the 133rd to 136th vehicles were also modified to have one installed in later years. The EF81 type owned by JR East has had its paint color changed from rose pink to Red No. 2, and some vehicles have been modified to be equipped with double-headed couplers.

In addition, the electric heating indicator lights on the sides of the car body have been removed from around 2022. The EF81 type owned by JR East used to pull many regular passenger trains such as the "Hokutosei" and "Akebono", but is currently used to pull special trains such as the group-only special train "Cassiopea Journey" and distribution trains.

• The side where the electric heating indicator light has been removed is reproduced with a new production
• The number plate has a shape that makes the cut edges less noticeable
• Number plates come as separate parts "EF81-136, 139, 140, 141"
• Printed head mark included "Cassiopeia"
• Radio antenna already installed
• See-through driver's cab is reproduced
• Front handrail (vertical) comes as separate part
• Headlights are equipped with a constant-on board and have an ON-OFF switch
• Headlights are illuminated by incandescent color LEDs
• Uses power with flywheel
• Uses black bogie frame and black wheels
• Uses wheels with integrated plate wheel center
• Includes double-headed TN coupler
• Uses M-13 motor

Special notes:
Of the number plates included, "EF81-136" has also been reproduced by printing

Vehicle:

• EF81 (JR East specification, with double-headed coupler)

Accessories:

• Runner parts: Number plate (for front)
• Runner parts: Number plate (for side)
• Runner parts: Manufacturer's plate
• Runner parts: Handrail
• Runner parts: Head mark
• Runner parts: Whistle cover, signal flare
• Parts: Double-headed TN coupler