Set Contents: Main unit (khaki & brown reversible) / Belt / Repair kit / Storage bag with drawstring; Product size (approximate): Length 76.0 x Width 25.6 x Thickness 1.2 inches (194 x 65 x 3 cm) (when stored); *There may be slight differences depending on the product. Weight: Approx. 2.6 lbs (1.2 kg); Material: PVC/urethane foam. *This mat is automatic inflation.Once the valve is opened, the urethane material breaks in air and automatically inflates over time.( Please breathe directly into the pillow.If the product is delivered or unused for a long time, it may be difficult to inflate.In that case, you can blow it directly and inflate it or try the following methods: 1. Inflation stops when some air is entered, but it is compressed and rolled up to exhaust air. 2. Unfold the mat again to allow air to enter more easily. 3. Repeat the above process about 3 times. Please note that overinflation may cause damage to the main unit. The color of the actual product may differ slightly depending on your monitor settings. This page is sold as a set of 1.Buy 2 and use them together.