This is a set distributed by DigO toys creatively titled, “Pony”.
These two have molded hair. Bodies are molded in multiple parts that pop together. “Rainbow Dash” is 3″ and the princess is 3.5″.
Note that Applejack has Monster High Lagoona’s leg fins. Maybe these are repurposed Monster High fakie molds.
This interesting fakie displays the TikTok symbol on one side.