Panasonic Toughbook CF-19DDGZXVM Operating Instructions Manual page 14

Description of Parts
Attaching the hand strap and the shoulder strap (option)
14
Attach the hand strap to any two of the corners (A) using the screws.
You can connect the shoulder strap (B) to the hand strap.
(The illustration is an example.)
CAUTION
Do not use the strap to carry a heavier weight than the computer. Other-
wise the strap may become loose by itself.
Do not use the strap if it becomes worn or damaged.