Package includes 64 double sided visual stimulation cards designed for 4 stages of baby's development , Visual Cognitive Stage 1, 0-3 months - Black and White high contrast cards to improve visual distance. , Visual Cognitive Stage 2, 3-6 months- Black and white dotted with basic colour (red) to help baby adjust to seeing colour around them. , Visual Cognitive Stage 3, 6-12 months- Abstract pieces with various colours to stimulate imagination and brain-eye coordination. , Visual Cognitive Stage 4, 12-36 months - Objects with various colours to better understand our world.