EmbTao Glow In Dark ACU EMS EMT Medic Paramedic Star of Life Morale Tactical Embroidered Applique Iron On/Sew On Patch - Black & White Glows in the Dark after absorbing the light. Very Cool! EmbTao is the first brand of developing Embroidered Glow In Dark Patch. Measures 2.5 inches wide by 2.5 inches tall. 100% fully embroidered patch. Heat seal backing. Iron on or Sew to any garment. Ironed-on patches will not come off. Safe & non-toxic. Washable and Durability. DIY in 15 seconds! Perfect for Jeans, Jackets, Vests, Hats, Backpacks and more!