Dunlop Black Widow 18

Dunlop Black Widow 18g Tennis String

Maximum spin bite in the thinnest, sharpest gauge. The Dunlop Black Widow 18g is a high-performance co-polyester string engineered for players who want the most aggressive spin generation possible — combining the Black Widow's signature heptagonal (7-sided) profile with the thinnest gauge in the lineup for the sharpest, most responsive bite into the ball on every shot.

The 7-sided shape creates more string-to-ball friction than a round string, translating directly into heavier topspin and more aggressive slice on every groundstroke. The ultra-thin 18g gauge bites even deeper into the ball than the 16g, generating maximum spin and a sharper, more sensitive feel — ideal for players who want to feel every shot and maximize their spin potential. The stiff co-polyester construction keeps your shots accurate and controlled even at full swing speed.

• Gauge: 18g / 1.20mm
• Type: Co-polyester (heptagonal profile)
• Performance: Maximum spin bite, control, and feel
• Shape: 7-sided heptagonal profile for aggressive spin generation
• vs. 16g: Thinner gauge = more spin bite and feel, less durability
• Available as: 1/2 Set, Full Set, Reel
• Brand: Dunlop
• Ideal for: Spin-focused players seeking maximum bite and feel from a thin co-poly

Need more durability? Try the Dunlop Black Widow 16g (1.30mm) for the same heptagonal spin with added longevity.