This 3D printed knife handle is a custom replacement for the original heavy metal handle of a this mini knife purchased from AliExpress. 

The total weight of the knife with the original steel handle is 54 grams, with the handle itself weighing 40 grams. By replacing it with the 3D printed handle, the total weight is reduced to just 18 grams.

In addition to the lighter weight, the 3D-printed handle can be customized in various colors, allowing you to personalize the knife's appearance. The design also features a small cut-out, making it easier to open and use.