The JuJube Rice Cake Wall is a piece of decor from the decors shop of Cookie Run Kingdom. You can find this particular decor in the lunar new year tab of the decors shop. It was originally added in 2021 as part of a lunar new year event where it was one of the requirements for additional lucky pouches for Kumiho Cookie's Pouch Mania event.
See also: All Buildings
You can find this decor in the following tab of the decors shop:
From there it's all the way to the right side of the shop.
The Jube Jube Rice Cake Wall costs 1,920 coins and gives 30 decor points.