- LED coaster set with 4 coasters. Each coaster contains 6 LEDs and you can choose between colourful LEDs or cool white LEDs. - Easy operation with an on/off button and 3 lighting modes. Tap to cycle: one tap for quick flashing, two taps for slow flashing, three taps for always glowing. - Round acrylic coaster design. Battery compartment is embedded in the LED coaster panel. Do not wash directly; clean with a damp cloth. Environmentally friendly materials; acrylic is lightweight and durable. - Power and care. Powered by 2 x CR1620 batteries. Not fully waterproof; do not wash the coasters directly to avoid electric shock. Replacing batteries is a little involved, but you could try to start by removing the white sticker. The acrylic plate is recyclable. - Practical use scenarios. Ideal for dining tables, parties, and desk or coffee table decor. Use during meals for subtle ambient light, at gatherings to enhance mood, or on a work desk to add decorative illumination.