Black Knight ION Quartz PSX: Black Knight Squash Racquets<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Head Size: 500cm2 (77.5in2)， Frame Weight: 130g (4.6oz)， Length: 27.1” (69cm);</li><li>Thin-K Technology Aerodynamic Frame;</li><li>Power Surge Technology for Increased Stiffness and Power;</li><li>Nano-Crystalline Technology Providing Balance and Control;</li><li>Power of 6 Technology Delivering Best Performance;</li></ul></div><img src="http://ecx.images-amazon.com/images/I/413mOPA8lpL.jpg" noproxy>