1/700 Scale Plastic Russian Kilo Class Submarine - Length: 4.25" These models come already assembled and painted out of the box. There is nothing to do or needed other than take them out of the packaging and display them. These models are plastic. The model rests on a display stand. The model is not permanently attached to the display stand. This is not a toy. Recommended for 15 and up. The Kilo-class submarines are a group of diesel-electric attack submarines designed by the Rubin Design Bureau in the Soviet Union in the 1970s and built originally for the Soviet Navy. Since it was introduced, more than 70 Kilo class boats have been built, and around 60 were in active service as of 2023, not only in Russia but also in Algeria, Vietnam, India, Iran, Myanmar, and Poland.