HEAD Argon 155 Strung Squash Racquet [Strung] This racquet ships pre-strung This racquet includes d30 technology, which allows powerful shots to become more explosive and touch shots more accuracy. The Quadraform shaped head is 460 squared cm. The racquet beam is 16.5-20mm and has a 14/16 string pattern. The racquet weighs 155g unstrung and is standard in length (27"). The balance on the racquet is 335mm.