Reader Rubber Duck Bath Toy - Natural Latex Rubber - No Phthalates or BPA by Rich Frog. $10.59. Reader Duck is designed for kids ages 3+ years old. The classic natural rubber duck, with book in tow, is the perfect playtime toy for young children and adults alike! However, due to small parts that could pose a choking hazard, it is NOT recommended for children under the age of 3. Who said you couldn't read in the tub?