Packaging
Aside from the mouse, one finds a USB Type-A to Type-C charging cable, wireless dongle, and quick start guide in the box.
Weight
My scale shows around 55 g (+/- 1 g), which is exactly in line with the weight cited by Glorious. For comparison, the larger and hole-free Razer Viper V3 Pro weighs 54 g, whereas the similarly-sized and likewise hole-free Endgame Gear OP1we weighs 58 g. A very good weight.
Cable
The Series 2 Pro Wireless comes with a paracord-like, braided charging cable (USB Type-A to Type-C). An anchor at the mouse-end of the cable ensures the cable does not come loose during use, although it also prevents one from plugging in the connector in either orientation. In terms of flexibility, this one is roughly on par with the regular "Ascended" cable on the latest Glorious wired mice. Accordingly, the Series 2 Pro Wireless can be used as if it were a wired mouse with barely if any perceivable difference in terms of handling. Its measured length is 2 m, and a ferrite bead is attached.
Feet
The feet on the Series 2 Pro Wireless are white-dyed pure PTFE (Teflon) feet with slightly rounded edges. Glide is very good and thickness above average.