Outdoor Foldable Waterproof Picnic Blanket Sleeping Mat Camping Hiking Beach Rug (79"x59",Blue Grid)Category: Rollup Picnic BlanketQuestions and Answers:1. How Large and how thick is this blanket ??It measures 200x150cm (80x60 inch), folding size is about 40x27x10cm(15x10x3 inch),??4mm thickness. easy to carry on and confortable to sit or lay on.?2. Does it have bad smell and how quiet is this blanket ?No, it has no chemical smell at all, and it has foam on the middle, very little sound when folding or sitting.3. Can i use it for beach mat ?Yes, it is ideal for all outdoor and indoor activities such as picnics, BBQ, camping, beach, music festivals or sporting events. Also extremely useful as a vehicle upholstery protector for your pets. Also makes a perfect crawling mat or play mat.4. Is this machine washable ? How can i wash it ?Wash and Clean: Top layer can be wiped slightly with warm water and mild soap; Bottom waterproof layer can be cleaned by damp cloth;naturally air dried and line dry in the air will be fine.This standard version is NOT machine washable, if needed, please go to our premium machine washable version:ASIN:B01N36V8TSFor CALIFORNIA residents only: WARNING: This product contains chemicals including DEHP, which is known to the State of California to cause cancer and birth defects or other reproductive harm.Please note that by posting this Proposition 65 warning, we are notifying you that one or more of the Proposition 65 listed chemicals may be present in a product. With Unique Bargains' products, the exposure to these chemicals may be of no significant risk to you, but out of caution, we have elected to place this warning on our site to make sure our customers are informed.You can find more information at http://www.oehha.ca.gov/proposition-65/about-proposition-65.