New 3.5Oz Glow in the dark Coarse Sand 1-3 mm for FISH TANK AQUARIUM Ornament DIY no.50 Safe:Free of ant radioactive elements , non-toxic, harmless, and absolutely safe for application in all industries . Longer afterglow time: more han 6-12 hours. Package:1*100g/3.5Oz Light Green Sand as picture showed If you want color, please tell me. 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.