This product is made of , glass, sponge and plastic materials, and beautiful, practical and durable. The design is simple, and the surface is smooth without burrs. With the tiles design, you can DIY the chic coaster. Features -Color:Assorted Color -Material: , glass, sponge, plastic -Size(base):9.50X9.50X1.00cm/3.73X3.73X0.39in - It can cultivate the patience and concentration of teenagers, and help them have better DIY ability. - The insulated design makes this coaster more practical, perfect for home dining table. - Creative design, DIY products, exercise handcraft skills, very funny and interesting. - The texture is fine, smooth and does not hurt your hands, very safe to DIY and use. - It can be used for holding your milk cups, hot tea , coffee so that your table will not be . Package list: 5 x bag of tiles 5 x base 5 x bag of caulk 5 x sponge 5 x mixing bowl 5 x 5 x alcohol glue