Abstract: A retainer for a mobile device is disclosed. The retainer may have a base defined by an open-sided resilient wall, which is capable of flexible and removable engagement to an internal surface of a container insert. An arm may extend vertically upward from the base and may support a holder. The holder may be positioned over the base. The holder may have a bottom wall, a front wall extending upwardly from the bottom wall, a rear wall extending upwardly from the bottom wall opposite of the front wall, and opposite side walls extending upwardly from the bottom wall and interconnecting the front wall and the rear wall, wherein the rear wall has a height lesser than a height of the front wall. The bottom wall, the front wall, the rear wall, and the opposite sidewalls defining a space configured to receive and retain the mobile device.