Mala is a tool used to keep your mind on the meditation practice. Malas are generally made from different materials such as tulsi (basil) wood, sandal wood, rudraksh seeds or crystal. Each type of material has certain properties which subtly affect the subconscious mind of the practitioner.
The mala beads are moved in rhythm with the breath and the mantra, so that both-sleep as well as excessive mental distraction-are prevented by this action upon the beads.
Rudraksha Seeds hold a very special place in the Hindu religion and are often worn in strands of 108 beads by Sadhus (religious devotees of Hinduism). As per the vedic scriptures Rudraksh can nullify the effects of malefic planets to a great extent. Shastras say Rudraksh of any mukhis can never do any harm to the wearer unlike Navratnas, which have to be carefully chosen. No other bead is so auspicious and powerful as Rudraksh.
Buddha Chita (Bodhi) Beads is known as a special nepali Beads which are used specially by Buddhist for meditation. In some cases Indian Bodhi are also used.