Abstract: A holding apparatus capable of embracing a generally flat-shaped item, such as a smartphone, computer tablet or the like, said holding apparatus comprising one or more pairs of opposing V-shaped clamping surfaces capable of providing a self-adjusting, permanent grip of the sides of the item regardless of the item being static, vibrating, or touched by a user's finger or other external object. The V-shaped clamping surfaces can be arranged on two or more sides of the device. For instance, opposing V-shaped clamping surfaces can be arranged to clamp the left and right sides of a four-sided quadrangular device, and additional opposing surfaces can be arranged perpendicularly to grip the top and bottom sides of the device, providing a very effective and robust grip that minimizes the risk of the item being dropped and damaged.