These coasters are made from natural pulp boards. They are strong enough to prevent the glass from condensing moisture. Coasters are a must-have for any bar or restaurant. They are an important part of every table setting and help to absorb moisture from the glass. One-time, recyclable, very environmentally friendly. Your company name can be printed on the product so that everyone who uses it knows your company. A variety of colors to choose from. Ideal for promotional gifts and giveaways.