Tier One T1 Black knight Co-Polyester 16 Gauge 1.28 mm tennis string

Description

Tier One T1 Black knight Co-Polyester 16 Gauge 1.28 mm tennis night performance string.
New reel sells on Tier One’s website for 4
Description
An innovative, high performance string designed for the modern tournament player. The latest 6 sided co-polyester blend ensures and ideal balance of power, control, access to spin and unexpected arm-friendliness. Exceptional durability and tension stability will guarantee the avid player an ultimate, long lasting playing experience.
Features & details
What makes this 6 sided co-poly string so truly special is that although, it is very soft/arm-friendliness (based on USRSA lab results), it holds tension extremely well (based on USRSA lab results), offers outstanding durability AND provides the high level player with precise depth and directional control. It is common thought to assume that the string would respond very "springy" and loses tension quickly due to its softness. Quite to the contrary, this is one of the string's strengths!
KEY FEATURES: Great directional and depth control, exceptional durability, access to spin, arm-friendly.
RECOMMENDED PLAYING LEVEL in 16 gauge: NTRP: 5.0-7.0, UTR: 9-16+ (advanced - pro level)
RECOMMENDED PLAYING LEVEL in 17 gauge and 18 gauge: : NTRP: NTRP: 3.0-5.0, UTR: 2.5-9.5 (intermediate - advanced level)
LENGTHS: Sets: 12.2mm/40ft, Reels: 200m/656ft, GAUGES: 16g (1.28mm). 17g (1.23mm), 18g (1.18mm), COLOR: Black.