... Health , respinsibility , environmentally friendlyProduct Feature: All numbers , letters , chinese zodiac , chinese map , geometrical piece , they all are for baby teethers . ... they are playing the products. The numbers , letters ,chinese zodiac , chinese map , geometrical piece need to be boiled five ... well as EQ. 3 . an be used as early learning toys,DIY toys , and jigsaw for kindergarten. 4 . ...