For dogs that insist on being “bad to the bone,” the Casual Canine™ Blinking Bone Tee delivers the message loud and clear. Blinking, glow-in-the-dark bone on a black cotton tee provides cool, comfy, and casual fashion. Illuminated skull-and-crossbones LED is a fashionable safety feature. “Bad to the bone” lettering includes silver glitter for extra detail. Requires coin battery (included).