be warn if you be buy this for a early teething baby . I buy this in advance for my little one , think that it would be a couple month until he need it . Whoops , he start teethe just this past week at 3 1\/2 month . I get this out and he do not know what to make of it . it be too large for he mouth . he be use to a pacifier and try to suck on the RaZberry . then he spit it out or it fall out . although he be able to grasp & hold a rattle and throw it around , he do not have the manual dexterity necessary to help hold the RaZberry teether in he mouth for it to work . we try to hold it up for he , but he little tongue push it out . right now what be work be plain old teething ring directly from the freezer . we help he hold on to those and he 'll chomp on they for some time .