Strings warranty

Terms for Mark Strings Customer support

Here in Markworld we do our best to offer the highest quality for our products, we employ the highest strict quality control standard and we apply the knowledge handed down through the centuries of the ancient tradition of master string makers. Unfortunately, it can happen to receive musical instrument strings with a shorter life but we will gladly send you a replacement if the string is determined to be defective for manufacturing defect, please note it excludes the wear due to the normal use.

It is not enough! Because Markworld on the strings of Balanced series is glad to offer to its customers the replacement if they have broken or rusted under normal playing conditions, within the first 100 days from the day of original purchase from an authorized retailer! Every customer has a maximum of two claims per year.

For the issue on Bass Strings you will receive a new full set of strings to replace the defective string! 

How obtain the replacement for manufacturing defects

Contact the authorized dealers or distributors who sell you the product, IMPORTANT: bring with the defective string the original proof of purchase and follow his instruction. 

Please note the replacement will take place after it has been determined by an authorized retailer or authorized customer service

For the US customers: Mark World P.O. Box 1511 Thousand Oaks, CA. 91359-511.

If you bought your product online on or you need further support, please fill in the following form.

IMPORTANT: remember to attach the proof of purchase, a picture of the string, a detailed description of the defect encountered.

How obtain the replacement for Balanced series broken or rusted string’s defects

Complete the form here and remember to attach the original proof of purchase and picture of defective string, we will be back with all the details to follow with repair or replacement.. 

Please note the replacement will take place after it has been determined by our customer service. No product may be returned to Markworld without obtaining a prior Return Authorization from the authorized service.

To report a defective string issue please fill in the following form.

Warranty terms for rusted or broken string

Markworld warrants that our Balanced strings will be repaired or replaced at no charge in case of possible flaws in material or workmanship during a period of one hundred (100) days from the date of purchase, except for damage from improper use or normal wear.

  • The warranty takes effects from the days of purchase from an authorized dealer, distributors or Markstore.  
  • This  warranty is referred and limited specifically to the Balanced series strings.
  • The warranty for rusted or broken strings does not cover the shipping costs.
  • Markworld may at its option refund the value of the product under warranty or defective if it is unable to replace the product, the replacement will take place after it has been determined by the Markworld Authorized service. 
  • It is applied to the original purchaser and is non-transferrable. 
  • The Guarantee does not in any way affect the consumers’ rights legally recognized by the law applicable in the Product’s state or jurisdiction of purchase.


PLEASE NOTE: Markworld excludes any liability, whether based in contract or tort, including negligence, for incidental, indirect, consequential, special or punitive damages, or costs of procurement of substitute products by customer, or any loss of revenue or profits, loss of business, or financial loss arising out of or in consequence with the purchase, sale, installation, maintenance, use, performance, or failure of this product, even if Markworld or its distributors have been advised of the possibility of such damages. 

Liability is limited to replacement of the product or refund of purchase price at Markworld’ s option. This limitation of liability for damages will not be affected if any remedy provided herein shall fail of its essential purpose. Some jurisdictions do not allow the limitation of incidental or consequential damages so this limitation may not apply. This Guarantee applies except where prohibited by law.

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