<p>This baby visual stimulation card set is scientifically designed for babies aged 0-36 months<br />Carefully planned according to baby&#39;s visual development规律 with four distinct stages: Black-white card stage (0-3 months) uses high-contrast black-white patterns to effectively stimulate newborn visual nerve development; Black-red card stage (3-6 months) introduces red elements, matching babies&#39; sensitivity to red during this period; Color card stage 1 (6-18 months) employs bright colors to promote color recognition ability; Color card stage 2 (18-36 months) includes complex patterns to cultivate observation and cognitive skills Each set contains 4 independent card books corresponding to different development stages, allowing parents to choose according to baby&#39;s age. Cards are made from thick eco-friendly cardboard with smooth rounded edges, waterproof laminated surface for easy cleaning and disinfection, ensuring baby&#39;s safety during use Not just a visual training tool, but also an excellent early education assistant. The card patterns are scientifically designed with Chinese and English labels, providing language enlightenment alongside visual stimulation, comprehensively promoting baby&#39;s brain development Certified with international safety standards, made from non-toxic safe materials, it&#39;s the perfect gift choice for newborns, helping babies receive scientific visual training and early education during critical development periods</p>