The waterproof picnic blanket is designed with oxford at the top and PVC at the bottom, which is sand-proof and easy to clean. 78.7 inches * 59 inches of large picnic mats are unfolding, which can provide enough space for 3 people to lie down or 6 people to sit down to accommodate more food, drinks, etc. Lightweight camping mat: 9 x 7 inches after folding; lightweight and compact folding size and convenient handle, can be easily put in a bag or carried with you.It can be used as a beach blanket, camping blanket, RV blanket, baby play mat, emergency blanket or throwing blanket. It is an ideal choice for parks, beaches, sports events, football games, backplanes, concerts, and hiking.(500 pcs by sea)