Scale Buddy is designed to take the stress of packing and getting charged for oversized luggage or weight. Scale Buddy connects to a device attached to your luggage. The device can tell you how much the bag weighs when pulling on it, also includes a GPS tracker. There is also a section that has all of the air lines restrictions on luggage and weight so there are no surprises when traveling. The device is suppose to attach to the top of you luggage and when you pull on it the information of the weight goes to your phone and shows on the scale as well. It also works as a tracker encase the bag ever gets lost.