Review on Slsy Zero Gravity Chair: Ultimate Comfort For Indoor And Outdoor Relaxation by Ellie Parra

I am 188cm and 159kg: Sat in the chair for the first time and found it very narrow but initial feel was relatively sturdy. Don't know if with repeated use that sturdiness would actually hold up because even though I set the two levers under the handles (my version didn't come with the pin that some users have mentioned) the chair began folding up and then tipped over landing me on my back. Upon further inspection the relative lengths of the lower and upper portions makes it to where a non-slouched sitting position results in a center of gravity for a taller, top-heavy person that is behind the fulcrum of the chair's folding apparatus. This is why when I leaned back it began to fold up (relatively more weight further from the center of gravity on the back/upper half) and once the legs had closed enough the chair just tilted back and fell on its back. Once the closing begins, trying to lean forward to arrest it results in accelerating the fall because the opposing forces applied on the chair when trying to tilt the torso forward actually pushes backward on the chair. Dangerous product if your height/weight puts more of your mass on the top end.