This is an assembled underwater motor and hull set.
The underwater motor can be turned on and off by twisting the main body. It has a rudder at the rear, allowing it to turn around.
The hull is made of styrene resin, the same as the plastic model. You can enjoy painting with Tamiya colors and modifying with plastic vans.
The underwater motor can also be easily attached to the hull using a suction cup.
If you use AA alkaline batteries, you can run for about 2 hours continuously.
The total length of the hull is 170mm, and the total length of the underwater motor is 123mm.
Uses 1 AA battery (sold separately).