Convenience: The battery powered coasters provides cordless illuminating, brightening up your warm evenings Clear: Made with high transparency glass with delicate cut textured for a comfortable grip and luxurious aesthetic appeal Ambients Lighting Effect: Comes with a luminously coasters that creates sparkling light reflection through the glass, instantly elevating your home or club atmospheres with premium vibes Rotating Stress Relief: The whiskeys glass features a freely rotating design that rotates with a gentle touch, helping you relieve stress during relaxing moment Multi Occasion Versatility: Perfect for relaxation, friendly gatherings, or romantics dates, adding a stylish touch to any drinking