Compact material handling devices are small and portable enough to work in office or tight storeroom environments. These lifting and carrying devices have platforms that are variable heights. Activation of the horizontal lifting surface is typically powered by batteries, hydraulic foot pumps, or hand cranks. Ball transfer tables may be added to the horizontal-lifting surface. This reduces the push and pull force needed to move materials to and from the lifting device. Products from this category help individuals with lifting or carrying restrictions resulting from back, neck, shoulder, heart, and various repetitive strain injuries.