In original packaging item, may require some assembly. See link for more details:

Size: Twin 

Note: Exact style may vary.

https://www.walmart.com/ip/Bamboo-Mattress-Topper-Twin-Size-Viscose-Pad-Dual-Cooling-Back-Pain-Relief-1000GSM-Pillow-Top-8-21-Deep-Pocket/16673154779