On Friday, November 16th, 2018, the second set of the Pokémon fit palm-sized plush toys will appear at the Pokémon Center! The small and cute Pokémon are from Pokémon Red and Green. A total of 121 new Pokémon have been added to the lineup! If you add in the 30 Pokémon that have already been released, there is a total of 151! Be sure to collect them to complete your collection! All plushies cost 1,100 yen each.

At the Amazon.co.jp Pokémon Store, pre-orders for these plushies will be starting on November 16th, 2018, and sales starting on November 24th, 2018, but due to the limited number of products available, they may be sold during the pre-order period.

Source: https://www.pokemon.co.jp/goods/2018/11/181109_p02.html