Yonex Poly Tour Strike 16L/1.25 Tennis String (Grey) Stringing_Machine_Accessories with two layers of monofilament

with two layers of monofilament wrappings (that increase flexibility)

The is the cap/end that picks up the balls

Lobster Ball Detection Switch

With a capacity for 400 tennis balls

Composition:Polyester

Yonex Poly Tour Strike 16L/1.25 Tennis String (Grey) Stringing_Machine_Accessories with two layers of monofilamentYonex Poly Tour Strike is a co poly monofilament string designed for hard hitting players that strike the ball with tons of power. Ideally suited for players with long, fast swings to maximize its playability, which include immense control and spin, but still maintains a decent level of comfort. Poly Tour Strike is the string used by Denis Shapovalov & Naomi Osaka Yonex Poly Tour Strike 16L 1. 25 Tennis String (Grey) Specs: Gauge: 16L Diameter: 1. 25