During meditation beads are a must. Different beads are there in rosary according to the purpose. Beads may be padam beej, rudraksha, tulsi, shankh, pearl, gold, silver, gem, root of khush. All beads in a rosary should be of equal size, free from decay and unbroken. One additional bead of a bigger size than others is put at the top of the rosary. The number and type of beads in a rosary vary with purpose.

Shiv shakti mantras - Rudraksha.

Vishnu and Lord Krishna mantra - Tulsi

Death inflicting mantras - Padam Beej

Mantras for wealth - gems, jewels, gold and silver.