12b61dae_rium__Let_Your_Brain_Run_Free___Other_products
[PlayFoam] PlayFoam is ready to use right out of the package. No messy mixing or stirring. [Other products] 
The other brand is not ready to use right out of the package. It requires messy mixing and stirring to blend the color.
Playfoam & Smencils : BRAIN-athon Emporium: Let Your Brain Run Free!
Other products