Check the listing for details. LOT OF TWO ShurLok SL600 Real Estate Lock Boxes - Key Safe Realtor Lockbox USED. Condition: Seller refurbished. Listed at 29.95 USD. This listing is for TWO (2) lock boxes. The lock boxes are in refurbished condition. All lock boxes have been tested and are fully functional. All lock boxes are set to factory setting of 0000. Some might have cosmetic scratches or blemishes, but all units are working. The ShurLok II uses a state-of-the art, patented system with two sets of combinations. The first combination releases the shackle while the second combo opens the key storage door. **If there is a problem with your order please contact us before opening a case or leaving a negative rating. Whatever your problem may be, we'll strive to fix it. Unfortunately, we are not responsible for forgotten combinations, but if you send your lock to the manufacturer (see below) they can reset the lock for you. Item Specifics: Blue Lock BoxFront Loading Key Door for Easy Access (see image number 4)Easy Setup, but don't use a screwdriver to set the combo, it will break the change button. Fits Securely Over Standard Door Knobs Directions on How to Set your Code Included Use For: ContractorsRealty Agents or Real Estate ListingsUse alongside Medical Alert Device to Avoid Damage to Door in Case of Emergency Property Management Key Lock BoxDog WalkersEasy Access for Maintenance or House Cleaning CrewsIf you do need to make a return we will provide cash back upon return of your item, but if you'd rather have a replacement you can obtain a replacement through the manufacturer, FJ Martin Security. If you feel your lock is defective then they will replace the lock unless it is apparent the problem has been caused by the user.