Make your garden or yard to look different from your neighbors at night with glowing stones! Product features: - Line a walkway, edge a flower bed, decor garden or fish tank with these unique pebbles. - After absorbing light, the pebble will glow brighter within 2-3 hours, and then the brightness will decay quickly. - Pebbles can absorb light repeatedly, and their life expectancy lasts up to 15 years. Specifications: Material: Photoluminescent pigment +Polystyrene Color: Blue Size: 0. 8 -1. 2 (approx) Package includes: - 1000 × Pebbles Stone (Blue) Notice: make sure stones absorbed enough light before glow. WARNING: Keep away from children for chocking hazard.