The Diablo Duo is a two toned string that adds an extra slice of colour to your tennis string.  As with any co-poly string, you will be able to swing out as hard as you can, and a low-friction surface to help with snap-back effect that generates spin.  Softer than the Diablo Pro, the Duo is a great string for players scouring the market for a nice playing, inexpensive string.

Prince Diablo Duo 17/1.25 Tennis String (Black/Silver) Specs:

• Gauge: 17
• Diameter: 1.25 mm.
• Construction: Monofilament
• Composition: Co-Polyester
• Shape: Round
• Colour: Black
• Colour: Silver
• Length: 40 ft. / 12.2 m.
• Product Code: 7J971620