This is a great value set of two "BaseCamp" R-size self-inflating mats from THERMA-REST. It's the current WingLock valve model (with anti-flow function), making setup and takedown very smooth. Purchased 3 years ago at an outdoor specialty store and used 3 times for camping. Stored carefully indoors away from direct sunlight. Air leak check for 24 hours completed. No punctures, strange odors, or stickiness. Supplement: There is one slight scuff mark (shiny spot) that is only visible in certain lighting conditions (see photo 9). It does not affect performance in any way, but is noted for completeness. • Accessories: Original stuff sacks x2, instruction manual. • Size: 51 x 183 cm (5 cm thick) • R-value: 6.0 (top-of-the-line model for extreme cold) [Regarding individual sales] If you wish to purchase only one mat, we can offer it for 14,500 yen due to shipping costs. The set offers a better price per mat, so please consider it. This is ideal for those who want to acquire a high-performance current model at a lower price. First come, first served! #THERMAREST #CampMat #CarCamping #WinterCamping #BaseCamp #Outdoor #SnowCamping #DisasterPreparedness