CHEAPEST WAY TO DECORATE YOUR GARDEN - 2lb (or 400 PCS ) glow in the dark stone at a very competitive price, big saving for your decoration project. | PREMIUM QUALITY GLOW IN THE DARK PEBBLE - 99% of the pebble can glow in the dark at night. Only 1 % might have product defect issue that we can 100% replace it for you. | NO BATTERIES REQUIRED TO LIGHT UP THE PEBBLES - These glow in the dark pebbles are light up by solar or LED light. The pebbles absorb the light for 1 - 2 hours and they can be glow for fairly long time. Do a LED testing FIRST! | PERFECT FOR INDOOR AND OUT DOOR DECORATION - Most people use them for driveway or garden decoration, while some people using the for indoor such as room decoration. | 100% SATISFACTION OR FULL MONEY BACK - Your satisfaction is our NO.1 priority. If the pebbles do glow, please contact us first. We will replace them for you.