Material: Coasters made of premium quality acrylic,non-slip,smooth,durable and sturdy, high temperature resistant, and good heat insulation,not easy to break,which can be used for a long time. Function: These drinks coasters can protect your beloved woodentable, kitchen countertops from damage and stains by hot water,coffee&tea.It can completely protect your table from stains and scratches. Apply to: Colorful coasters can not only protect the table but also can be used as home decorations to add a different color to your life.it is very suitable for cups for homes, bars, restaurants, and coffee shops. Package: 4 x Colorful Acrylic Coasters (4 colors),each coasters’diameter is 3.8 inch (98mm) which suits all commercial type of cups and mugs, perfect size for holding coffee cups, kids' drinks, sports bottles, craft cocktails and tumblers. Please note it: These round acrylic funny coasters are covered with protective coverings and it is easy for you to peel the protective coverings off to reveal a colored acrylic coasters for drinks.