Light Pebbles are the perfect way to accent your space with an ambient glow. The pebbles bring a piece of nature into your home, and their soft shimmer makes you dream of clear nights. Requires (2xLR44) batteries, included. Timer switch (8/16) is located on the bottom of the pebbles. Not suitable for outdoor use. * Dimensions: 3.2x1.6, 3.7x1.8, and 4.3x2.4in / 8x4, 9.5x4.5 and 11x6cm. * Materials: matte porcelain, LED module.