Features: 1. Ultra-thin cocktail light coaster free wiring no leakage waterproof design acrylic material safe and healthy 2. The product has three illumination modes flash slow continuous illumination 3. Switch button can change mode at will specifications: material: acrylic diameter: 10cm 3.9Inch please measure the size before purchasing. Thickness: 4mm 0.1 Inch weight: 34g light color: white light color light for optional three mode:quick flashing slow flashing and steady on power by: a pair of cr1620 button cell batteries package included: 4 x led drink coaster
