Should any TNT Rescue Systems, Inc. manufactured product purchased from TNT Rescue Systems, Inc. or an authorized representative of TNT Rescue Systems, Inc. fail to perform as originally intended due to wear or workmanship, return it to TNT Rescue Systems, Inc. with postage prepaid, and we will either replace or repair it, at our option. for as long as you own it- no if's, and's or but' s. TNT Rescue Systems, Inc. recommends annual servicing of tools by a TNT Rescue Systems, Inc. authorized service technician.