Kirschbaum
Pro Line II 16L
Kirschbaum Pro Line II 16L is the budget champion of the polyester string category. At $13 per set (and $120 per reel for serious volume buyers), it delivers durability and spin performance that punches well above its price. Durability rated 9.0/10 matches the best polyesters in the database despite the lower cost, making Pro Line II a favorite among players who break strings frequently and need to manage restringing costs. Spin at 8.2/10 is solid for a string at this price point, making it competitive with strings that cost 50% more. Club pros and recreational players looking to discover their string preferences before investing in premium options should start here.
Ratings
Spin
Power
Comfort
Durability
Tension loss
Full specifications
Pros and cons
Pros
Exceptional durability — outlasts many premium polyesters
Best-value polyester string in the database
Good spin production at a fraction of premium string prices
Popular choice for high-volume string breakers
Cons
Less brand recognition than Luxilon or Babolat
Comfort trails Yonex Poly Tour Pro
Not available in specialty gauge options
$13
Price per set
$120 per reel
Buy at Tennis Express →Quick specs