Every mala is guaranteed for 6 months assuming normal wear and tear.  Malas are by nature meant to be used and handled, and while mine are designed for exceptional durability, breaks do occasionally happen.  To ensure the longevity of your beautiful piece, I use the most durable nylon beading cord, which is double threaded for extra strength.  Many are double knotted by hand.  Some malas are made using durable, flexible jewelry wire.  Should your mala come apart or break, I will repair it for free with the wearer assuming the costs of shipping and handling.