This is a case and dock for the Vaporesso Xros 3 vape.
The case is friction fit and will need a little encouragement the first time you slip it on. The dock has a hole for inserting the USB cable with tabs to hold the USB connector in place. This will need a little help being pushed in (e.g. push from the bottom with a pair of needle nose pliers, screw driver, etc.). There's a trench for the USB cable to route out the back.
The model is currently sized to the USB cable that comes with the Xros, but, there are user parameters to resize the holes for any USB cable. Just update the dimensions for the connector and the cable. The depth of the trench is constrained to the size of the cable and will automatically adjust with the cable thickness parameter.
A spare pod can be placed into the back of the dock.