A push-up exercise unit and device is described which may enable a user to move with his or her body's natural rotation to engage additional muscle groups with reduced stress on joints. The device includes a pair of rotatable devices, one for each hand. Each rotatable device includes a handle assembly, a rotatable handle support structure, a fixed base support, and a bearing assembly operatively attached within the handle support structure to permit rotation of the handle assembly and handle support structure. The handle assembly is removable from a top surface of the handle support structure, to be inserted into another surface of the handle support structure to configure the unit for stowage.