SnaplightsBe prepared in any emergency. Create safe, instant light during emergency power outages. Just snap and shake to activate the two chemicals and stick glows immediately. Minimum shelf life of two years. 6" Snaplights last up to 12 hours and 10" Snaplights can last up to 4 hours. Phalate free, nontoxic and nonflammable. Size: 6" L x 3/4" W; Color(s): Blue; Quantity: 10 per pack.