black beads

Q: I would like to know if black bangles are allowed for babies for protection or is it more a Hindu custom. The little knowledge I have it's not part of our Sunnah.

Q: Please can you enlighten me if there is any significance in tying black beads around newborn babies hands to ward off nazar and the evil eye? If there isn't any significance then is there any action from the hadith that we can adopt to protect the child from evil eye and sihr?