Material And Size:glow stones pebbles are made of resin,the surface has been finely polished,smooth and round.the dimension of each decorative stone is 0.3"-0.4"/0.8cm-1cm. perfect for home decoration,diy gift,night light,art & crafting,etc. Widely Used:small glowing rocks are great for indoor and outdoor decoration.it can be used for fish tank,aquarium,vase,micro fairy garden,potted plants,yard,gardening,backyard walkway,pathway or driveway and so on. Charming And Romantic Decoration:maybe it's the luminous path in front of the house,or the shimmering garden,luminous stone will create a unique luminous visual effect in the dark and make your home romantic and unique. How It Glows:luminous glowing pebbles absorb and store energy from sunlight or lamplight,then light up in dark environments for 3-6 hours then gradually dim away.glow stones can repeatedly absorb light,storage light and emit light,durable,beautiful and practical. Warm Tips :please spread them all out to absorb the light source evenly,do not stack together.the time to absorb the light source is more than 1 hour.the longer it is absorbed,the longer the glow will last.please radiate them with light again if they are not bright enough.