These Pokémon pogs are only around 35 mm in diameter (compared to the standard 40 mm). They were possibly designed to be used in a 'shooter' / flying discs toy. The designs are the same as the standard size Pokémon pogs.

As well as the 151 Pokémon from the original Pokémon games, the set also features Togepi, which is un-numbered on the back.
 
Pokémon Tazos are small collectible round discs that were found in bags of chips made by Frito-Lay and its subsidiaries around the world, in the 1990s and 2000s.
 
 
this is a Sealed Unpopped Pog Pack with Charizard , Blastoise & Ivysaur Very Rare