When assessing an everyday object for potential use as an improvised weapon, what critical factor, besides inherent hardness, determines its effectiveness?

When assessing an everyday object for potential use as an improvised weapon, the critical factor, besides inherent hardness, that determines its effectiveness is its 'handleability' or 'ergonomics'. An object may be hard, but if it's difficult to grip securely, swing effectively, or control accurately, its value as a weapon is severely limited. A well-designed handle allows for a firm grip, efficient force transfer, and precise targeting, significantly increasing the object's potential to inflict damage and incapacitate an attacker. The ability to wield the object effectively is as crucial, if not more so, than its material hardness.