New 10 Pcs New Colorful Glow in The Dark Stones pebbles Rock For FISH TANK AQUARIUM no.57 Quantity : 10 pcs Size about Length:2-3CM width(1.5-2CM) Color:Random Color Weight : about 2-3g (1pc) Delivery time: By Airmail: Generally, delivery to USA takes about 10-35 days. Delivery to Canada,AU, UK, and other European countries takes about 14-28 days.