1000pcs Luminous Sand Pebbles 3-5mm for Aquarium and Garden

Glow in the dark decorative pebbles designed for aquariums, gardens, paths, lawns, and other decorative setups. Each lot contains 1000 pieces of luminous sand sized 3-5 mm, made from polystyrene resin and luminescent material. Non-toxic, odorless, and polished with no sharp edges.Specifications Material: Polystyrene resin and luminescent material; non-toxic and odorless. Size: Approximately 0.3 x 0.5 cm per pebble; around 0.025 g each. Glow: Absorbs light from sunlight or other light sources and