Shachihata Inc. guarantees Xstamper stamps against defects in workmanship and materials under normal usage, with proper care and re-inking, for as long as you own your stamp. Shachihata Inc. shall not be liable for any defects or damage caused by the use of refill ink that is not Xstamper Refill Ink. In the event defects should occur, we will repair or replace the defective stamp with a stamp of identical size and impression without charge, within 30 days of receipt of the defective stamp.