The ultimate smart belt features an innovative automatic Tucci Di Lusso signature belt buckle, which allows you to adjust the size precisely in 1/4" increments (instead of standard holes spaced 1" apart on traditional belts). it utilizes a built-in track system like a re-usable zip tie with 32 micro adjustments that enable the buckle to fasten securely wherever desired and also a locking mechanism on the back of the buckle. The ultimate smart belts are handmade and hand-polished and to last for you. Our Smart Belts are all one length of 130cm and can be cut to size.