This looks exactly like the RPM Tesla MY Cargo cover, but cheaper.I got one from eBay shipped from Hong Kong: Rear Trunk Cargo Luggage Cover Security Shield Shade For Tesla Model Y 2020-2021 | eBay
4 mounts - two front where the seatbelts are and two rear which slip under the weatherstripping. All are held to the trim with double stick tape. I wiped all of the areas down with alcohol and test fited before mounting. It even works with a cargo net.
Sorry at some of the pictures are posting sideways. No idea how to fix that.
Good to hear. I like Tesmanians hooking feature rather than trying to precisely hook onto the tabs of others if that makes sense. Seems more like how all other OEM vehicles have it.I just installed the cover from Tesmanian. It works great (although it's only been a few hours since I installed it). The back pieces hook onto the car's existing trim (in addition to the double sided tape), so this should help with the back pieces being pulled off. I also like the color compared to some others that I saw on Amazon which were more of a shiny black. The Tesmanian kit matches the existing panels better in my opinion. I would definitely recommend it.