What a great set of baby rattles! The rattles have been very well made so there should not be any concerns, even in the long run about them becoming unsafe for baby. I inspected each and every rattle as I opened the package and none of them had even a tiny flaw that could possibly scratch or otherwise injure a baby. They are very easily grasped by little hands that are learning how to work the hand-eye coordination. The colors make them appealing, at least to my sense of sight, for a little one. Each of the rattles also offer some different textures providing that experience for the little one also. I am very pleased with every aspect of these rattles and would be happy to give them out as gifts.