The ASI Symetry and Symetry II lounges are flat lounges with articulating headrests at both ends. Both come with self-locking safety hinges and are made with our rip-stop fabric. The ASI SYMETRY & SYMETRY II (3 wider than Symetry) is one of ASIs most versatile lounges. ASIs design engineers worked closely with health-care professionals to create this exceptional built to last portable lounge to meet your mobile blood collection needs. Features Stable platform Certified to support up to 450 lbs. Sturdy 2" aircraft-grade aluminum frame Technician friendly height and design 16° articulating headrest at either end Superior, Dura-Pro® Rip-Stop fabric Easy to clean Adjusts easily for Trendelenburg positioning Accommodates left or right sided procedures Pinless safety hinge Positive locking legs Folds in half with handles for easy carrying