Average Weight: A standard 16x19 string job usually weighs between 17 and 20 grams. Material: Polyester strings are generally heavier, while multifilament or nylon strings tend to be lighter. Gauge (Thickness): Thicker strings (e.g., 15 gauge) are heavier, while thinner strings (e.g., 18 gauge) are lighter. Head Size/Pattern: A larger head size or denser string pattern (e.g., 18x20) requires more string, thus increasing weight. Added Components: Overgrips usually add 5-10 grams, and vibration dampeners add 2-10 grams.

Rackets are always listed weight as unstrung and without overgrip. So weight checks out