comments:
Wonderful_Wifi_User posted on r/toyotasienna1w
Sorry for the SUPER late reply. https://a.co/d/0hR9uKkB it was 40x45cm, but I see it is no longer in stock. You basically have 4 of the same-looking hooks that are already back there for the cargo net. They come with double-sided tape, but I didn't even hesitate to not trust them and go straight for the screws. I popped open the little plastic trim covers to verify that it's safe to drive the screws right through without hitting anything. Had it for almost a year already, and it holds perfectly fine.