Tandemaus RS from Nanoblock's Pokémon RS Series stands approximately 2.12" tall and has 370 pieces
Difficulty level is 3. This kit features all the details one would expect. The Pokémon Series RS (Round Style) features Pokémon characters made with larger builds and now include rounded style pieces (to replicate newer 3D style games) whereas the standard Pokémon series does not.

The product box will have a Bandai Namco warning label, which is proof that you are purchasing an officially licensed Kawada product.