Coaster size details: Pack of 6, 10cm diameter, 1cm thick.It has non-sticky front and non-silp back. This coaster is made of good rubber and is of good quality. It will not feel very light in your hand and will not have a very pungent smell. It can be used with confidence. Not only can it be used as a coaster, but it can also protect your furniture from scratching your precious wooden furniture by the cup, or letting ice water wet your furniture. They can be used to protect your drinks from insects when you are outdoors, As a trivet for hot pans replacing the traditional wooden trivets or even as a jar opener. Its size is suitable for you to put in any place and it is also suitable for cups of general size and shape. It can withstand high temperature, so it is safe to put it in the dishwasher. Or you can wash it with soap under running water.