Ashaway PowerNick 18 - This one is for cronic string breakers. It is resilient, with great bite. Super value.

A word from the manufacture:
Ashaway's new, improved PowerNick® 18 Zyex® squash strings provide a unique combination of power, ball control and dynamic response, along with an exciting new red color. Constructed from thinner Zyex filaments, the improved string blends playability with durability for maximum performance. Steven Crandall, Vice President of Marketing at Ashaway Racket Strings, said, "Some of our players have been asking us for a tournament grade squash string with optimal performance, others for a fresh new look. We've enhanced our PowerNick 18 string to meet both of these needs."

PowerNick 18 has a proprietary 3-layer construction resulting in a thinner string with exceptional "bite" that allows good players to make better shots. The string's central core incorporates multi-stranded Zyex filaments for superior playability. The outer spiral braid provides good gripping action-enhancing spins and slices. A proprietary outer coating makes for easier stringing and greater durability.

While optimum tension will depend on the player's choice of racket and style of play, the recommended range of stringing tension for PowerNick 18 is up to 32 lbs. (14.5 kgs). To allow for the superior tension holding properties and thin gauge of the Zyex string, Ashaway suggests stringing it at 10-20% lower tension than for nylon strings.