Glow in The Dark Gravel Photoluminescent Pebble Fluorescent Cobblestone Noctilucent Resin Stone for …See more

Product description Weight: 255 g/bag, 8.9 oz., (75 ~ 80 pcs stones) Single pebble dimension: 3 x 2 x 1 cm Usage Instructions: 1) As decoration in Aquarium, fish tank, wall , garden trails ,etc 2) Expose it to any sorts of light for 1-30 mins, before put it into dark.

3) Longer exposed time longer luminous time, more intensive light much brighter Repeatedly Absorbs and Emits Light Aquarium decoration rock Non-toxic, harmless, non-radioactive, strong environmental adsorption capacity Fluorescent fish tank gravels High-intensive luminous,exposed 1-30 minutes in light can glow in the dark up to 1-5 hours Colorful garden trail decor Polyresin mix with fluorescent metal oxide, durable and long life.

Non-flammable, non-volatile.

No specific storage requirements.

Glowing in the water Long life time, repeatedly absorbing energy and emitting light for at least 3 years