100pcs/bag garden decorations glow in the dark pebbles glowing stones rocks for walkways path patio lawn yard decor luminous stone

these stones can't glow by themself. but these pebbles absorb enough sunlight during the day to glow up to 2-3 hours at night or any other dark environment. please radiate them with light again if they are not bright enough. quantity: 100pcs size: 2-3cm/0.78-1.18inch color: mix/white/green/yellow/rose red/blue material: pluminescent pigment + resin usage: lighting the pathway, driveway, walkway, flower bed, potted plants, or fish tanks.how do you make them glow? 1.don't leave the pebbles under light with the package . 2.don't pile up pebbles , make sure each pebble is fully illuminated .