Tech360cc 100 Man-made Blue Garden Walkway Pebbles Stone Glow in the Dark 100 piece set of man-made pebbles Line a walkway, edge a flower bed or fill a planter with these unique acrylic pebbles After being exposed to daylight, these pebbles glow (blue) in the dark Glow lasts approximately two to three hours after full sun exposure Not toys, keep away from children for chocking hazard!