Josephine the mouse to stimulate all of baby"s senses. Taste: Made of natural rubber and food-grade paint, they are completely safe for babies. Soft, and with numerous parts to gnaw on, they are ideal for soothing sore gums during teething. Hearing: The toys all have a whistle and help baby to understand the relationship between cause and effect. Touch: Soft to the touch, like a mother"s skin, the toys reassure and provoke soothing physiological and emotional reactions. Smell: A distinctive scent of natural rubber from the hevea tree gives them their characteristic fragrance that babies love. Sight: Their bright, contrasting colors attract baby"s attention.