This item was purchased new and then cut by myself to 50cm. According to the catalog specifications, the dimensions are 50cm wide x 50cm long x 1.3cm thick, with an R-value of 2.0 and a weight of 56.5g. Although unused, there are some minor scratches and dents. I think the cut surface is clean for a novice. It will be rolled up small for shipping due to its bulkiness. I will take the utmost care, but please be aware that it may become slightly misshapen. Yamatomichi Closed Cell Mat Air Mat Inflatable Mat Minimalist Pad Z Lite Sol Ridge Rest Classic Regular Regular Wide Short Therm-a-Rest Nemo