The drink coasters for tabletop protection is made of natural wood.The cup coasters diameter 3.93 inch, thickness 0.6 inch, it fits well with almost all types of cups.The lip design prevents liquid run off, raised edges does keep any water from overflowing onto the table.0.6 inches thick that is very durable. Love the craftsmanship, great quality! It does do a great in absorbing, it is giftable and the durability.Please clean the coasters with a damp cloth and wipe with a dry cloth, and regularly place the coaster in a ventilated and dry place to restore.You can also customize your company logo, message, and use it as a perfect promotional gift for your customers.