Oarifun Newborn Baby Sensory Toys--A high-quality companion for your baby to grow up happily Contrast Visual Stimulation: Babies around 4 months already have the ability to perceive colors. Babies will enjoy the beautiful world by recognizing and perceiving colors. During this period, taking the baby to feel the color and cultivate a keen sense of color, which is conducive to the baby's intellectual development and cultivation of painting interest. A Good Helper for Parents: When changing a diaper, place a small bolster on your waist to attract his attention and make the diaper change smoother. Or when you need to do other things and can't babysit for a short time, sensory toys are a great companion.