Food-grade materials: light coasters made of food-grade silicone material, no harm to humans, can be in direct contact with people, has passed SGS quality inspection. Unique glow-in-the-dark design: the luminous coaster adopts creative glow-in-the-dark design, the coaster automatically emits light green light in the dark after absorbing natural light, very unique and bright. Anti-slip and waterproof: the back of the luminous coaster mirror glossy treatment, so that the coaster is more non-slip, stable on the table is not easy to slide, the edge of the luminous coaster design leak-proof edge to collect the water, so that our desktop is cleaner and neater. Easy to clean: light coasters can be directly scrubbed with water or brush, that is, convenient and simple, can save us time and effort. High temperature resistance: The silicone material of the luminous coaster has good resistance to high and low temperature stability, low temperature can reach -40 degrees, high temperature can reach 230 degrees, very sturdy and durable.