New in Sealed Box, this is retired LEGO CITY Arctic Explorer Truck and Mobile Lab (60378)new in sealed box, never opened.  Some mild creasing.

Pre-Covid, my sister had a business teaching STEM to schoolchildren.  After things opened up, she wasn't interested in starting it again, so we are selling off robot kits and parts, laptop computers, LEGO sets, and various other items.  Now we have also started to sell some newer LEGO sets as well.

Now, the (possibly edited) AI description:

The LEGO CITY Arctic Explorer Truck and Mobile Lab (60378) is a highly sought-after set that offers 489 pieces for builders aged 6 and up. This set features an Arctic Explorer character and includes a truck and mobile lab for exciting imaginative play. With dimensions of 11.77 inches in length, 22.01 inches in height, and 9.92 inches in width, this set comes packaged in a box and is part of the LEGO CITY subtheme of CITY. Released in 2023, this retired set is new in box, making it a valuable addition to any LEGO collection.