This is a ground sheet made using Tyvek Silver. It comes with a storage bag. Size: 50cm x 100cm Examples of use: ground sheet, covering luggage, backpack cover, sunshade, etc. A grommet and rubber cord are attached in one place. The rubber cord can be used to bundle the sheet. Leather is attached to the grommet for reinforcement. The color of the grommet, leather, and rubber cord may differ from the sample photos. Storage bag size: 11cm x 15cm Weight: 33g (body + storage bag) These are approximate sizes and weights. The Tyvek logo, etc., will be printed on one side. The design and color may change. Although unused, wrinkles and creases may be present due to the nature of Tyvek. The material is water-resistant, but please note that it is not completely waterproof. This is handmade, not manufactured, so please refrain from purchasing if you are looking for perfection. ★Tyvek® Silver is a sheet made by vapor-depositing aluminum onto high-density polyethylene non-woven fabric Tyvek®, and further applying an anti-oxidation resin coating to each fiber to prevent aluminum degradation. Unlike other companies' products that simply sandwich a breathable aluminum layer between thin waterproof films, this is a strong building material with little deterioration in waterproofness even after long-term use. From the website of Asahi-DuPont Flashspun Products Co., Ltd. Thank you for your consideration.