OK Transformer block

This set contain 8 pieces, I only bought one each of Optimus Prime, Bumblebee and Ironhide.  Although the brand is named OK, but it is not really so OK for me (outlook is fine, but the printing is offset). Not to the standard of Decool and Sheng Yuan. Still they look cute, and they look different from Kreo (the official brand that comes out the Transformer minifigures series)

Mironhide, Moptimus Prime , Mumblebee