Latin Percussion LP004-GLO Glow In Dark Egg Shakers 1Pr Filled with non-toxic steel shot Recharge the glow by placing in direct light (under a lamp or in the sun) The longer the shakers are in the light, the brighter they glow Patented Filled with non-toxic steel shot Recharge the glow by placing in direct light (under a lamp or in the sun) The longer the shakers are in the light, the brighter they glow Made of wipe-clean plastic