The universal extension system (UXT) is designed with solid aluminum tubes. The clamshell adjustment system allows easy, intuitive operation at all temperatures. Combined with double pulleys for friction-free, high-tension servicing. Fitted with high-quality pre-stretched Marlow rope. Button and mechanism in stainless steel. Double stainless steel pulleys for less friction and long-lasting durability. UXT ClamShell adjustment system with easy and intuitive operation at all temperatures. Durable stainless steel construction designed to withstand high loads. Positive engagement completely unaffected by sand. Greater tube strength due to the absence of grooves.