Thank you very much for viewing. This is a Wac air mattress. It's 195cm x 65cm. I've used it for 2 years. Even though it inflates automatically when you open the valve, it doesn't inflate with much force. It won't inflate to the point of being perfectly taut like in the official photos. You'll need to add air with a pump or your mouth. When I've used it, I've felt like it might leak a little air after sleeping on it for a few hours, but it wasn't that noticeable. Considering this, I'm selling it for less than half the original price, so please purchase only if you understand. Please refrain from purchasing if you are overly concerned about minor details. To reduce waste, I will ship it only wrapped in bubble wrap, without using a cardboard box. Please be aware of this beforehand. No returns or exchanges, please. 38explorer ballistics solol ballistics somabito device works halftrack products mountain research Yeti snow peak Helinox yeti h&o H&O thearth oldmountain sanzoku mountain Coleman petromax somabito msr uniflame petromax Stanley zero cap ina cap nerudesignworks asimocrafts snow peak solo camping mountain climbing family camping