These were made for EP01 - Get to Work retail stores. They are retail fridges that you can stock with items and sims will purchase from them autonomously while in your store. They will also keep items, like fish, from spoiling as fast.
Includes two separate packages. One allows for aging of pregnant Sims. The other on adds an idle to pregnant Sims so that they will occasionally rub their tummy (Cool Kitchen Stuffpack required).