infant stimulation cards AND 5 month baby

Hi, i discovered the benefits of infant stimulation cards only now. Is it too late to use them or should i be moving onto flash cards instead. Perhaps using stimulation cards with more colours. What is the best option for me and my baby at his stage. My baby is 5 months old.

5 months is too old for infant stimulation cards. You can start with regular flash cards. If they have words, make sure they have large print.

Up to what age would you recomend stimulaton cards?

3 or 4 months.