The biggest one is 10.5” tall according to the tag, but measures about 12” for me.  First tag is completely faded.  

Ty Mermaid one has a bean filled body, is about 7” tall and has a couple marks on the back of the head, looks like purple pen.

The one in purple outfit is about 7” tall and has its sides tags cut off.  

The one in the pink dress is about 6.5” tall tag is from 2015. 

Mermaid slap bracelet is about 5” tall from head to tip of tail. Dated 2022 from Bullsitoy.

Picture are also part of the description.