Play Sand Mega Explorer Set - 3 lbs of Glow In The Dark Light Up Sand - With UV Pen Light, Tray, UV Glasses, Molds And More Three Pounds of Glow In The Dark Light Up Sand With 10 Accessories Sands Alive Features Unique Glow In The Dark Sand Technology Draw On The Sand Using UV Ray Pen And Watch Your Creation Glow With UV Glasses Build Masterpieces With A Variety Of Molds and Rollers - Including 3-D Animal Molds Create Volcanoes With UV Light Eruptions And A Flashling LED Module That Makes It Come To Life