The cross has the"square and compass" which is the well know symbol of free masons. This would be a great gift for the mason in your life or for a friend who is a mason. The back can be engraved with a special message. When you select the the masonic cross, there is an option called Engraving on Back. Click on that box and a small fee will be added to the price of the cross and a box opens where you can put up to 4 lines of information. Just type the message with a forward slash "/" at the end of each line. That's all there is to it.