These glow in the dark stones are made from high quality resin It is a good gravel ornament for your garden, yard or aquarium fish tank Fill a planter with the stones that will glow in the dark after being exposed to daylight Ideal for waterscapes, landscape decoration, potted plants, lighting a pathway or driveway, gardens, aquariums, etc Package included: 100pcs Luminous Stones The pebbles need enough sunlight to absorb ultraviolet light before they can shine in the dark. The multi-color glowing in the dark pebbles can be used to decorate roads, lawns and gardens. Can be used to decorate potted plants, and gardening. Also used to decorate fish tanks, and swimming pools. Suitable for some special occasions, parties and so on. Your garden will look fabulous with these cute luminous pebbles and give you a dreamy feeling as if in the fairy world. Material: Resin Color: Blue,Green Size: about 2.2cm Package included: 200pcs Luminous Stones Attention Please: Keep away from children for chocking hazard ! Put the stones under the sun or light for a few hours to activate light. These pebbles are soft glow and will hard to notice glow in bright sport, keep them away from any lighting source for better glowing effect at night.