Racquetball Strings at a Glance
Racquetball Strings At A Glance Gauge Playability Durability
Construction
Recommended Player Type
Colors
Special Features
Zyex Competition Strings
PowerKill® Pro
1.34
95
100
Zyex
Multifilament
All Court
Player
Natural
Optimum
Combination of
Power and Durability
PowerKill® 17
1.25
100
95
Zyex
Multifilament
All Court
Player
Natural
Superior
Combination of
Power and Durability
Killfire Hybrid Competition Strings
Killfire® Pro
1.30/
1.30
85
100
Aramid /
SuperKill II
Hybrid
Power Player/
Heavy Hitter
Gold/
Gold
World's #1
Racquetball
Durability Hybrid
Killfire® XL
1.25/
1.25
90
95
Aramid /
SuperKill 17
Hybrid
Power Player/
Heavy Hitter
Gold/
Gold
World's #1
Racquetball
Playability Hybrid
Superkill Competition Strings
SuperKill® 17
1.25
100
95
Nylon
Polymer
All Court
Player
Gold, White
and Purple
World's Most Popular
Racquetball String
SuperKill® II
1.30
95
100
Nylon
Polymer
All Court
Player
Gold, White
and Purple
Used by the World
Racquetball Champion
SuperKill® XL
1.25
100
90
Nylon
Multifilament
All Court
Player
White with
Red/Blue
Crosses
Textured Surface
For Great
Finesse and Power
Classic String
 MonoKillTM XL 
1.20
90
100
Polyester
Monofilament
Power Player/
Heavy Hitter
Gold
tough & durable
polyester /
great for hybrids


World Champion and IRT Superstar, Jack Huczek,
wins with Ashaway SuperKill II in his frame

USA Racquetball Official String   IRT-Tour Official String
ZYEX® is a registered trademark of Zyex Ltd.