The manual handling of a load may present a risk particularly of back injury if it is:

• too heavy or too large,

• unwieldy or difficult to grasp,

• unstable or has contents likely to shift,

• positioned in a manner requiring it to be held or manipulated at a distance from the trunk, or with a bending or twisting of the trunk,

• likely, because of its contours and/or consistency, to result in injury to workers, particularly in the event of a collision.