Check the listing for details. ASHAWAY OBLIVION HYBRID SQUASH RACKET STRING - 11m SET. Condition: New. Listed at 15.60 USD. Ashaway Oblivion is Ashaway's first hybrid squash string. The cross string PowerFusion has been specially made to enhance PowerNick's mains string. ASHAWAY OBLIVION HYBRID SQUASH STRING. Oblivion is the ultimate combination of adding a soft feel to a firm, powerful string.