This was specifically designed to go over the hinges on the ICECO VL45 Portable Refrigerator / Cooler [https://www.amazon.com/gp/product/B07TLL68BG] and make it possible to attach it to a handcart. I am using the Vergo Industrial 275 lbs Folding hand cart [https://www.amazon.com/gp/product/B00UBWJDZU].
The 6x phillips screws holding the hinge in place were replaced with 6x M5x30 bolts. This alteration is non-destructive and is an in-place modification that can be easily undone.
The author hasn't provided the model origin yet.