Dummy

A player attacking a dummy, with the information pop-up about the damage.

A Dummy is a non-player-character (NPC) that can be found in Lumbridge. You can attack it but it does not give you xp and it will not retaliate. Dummies are usually used to test the damage of weapons, giving you information about your damage-per-second (DPS). A dummy has 255 HP and does not drop anything when destroyed.