Coffee Mug With Silicone Lid , Sealed Portable Leak-Proof Insulated Vaccum Double Wall Stainless Steel Bottle For Home School Daily Use. The Wide Mouth Of The Coffee Mug Allows To Fill And Clean Easily. It Is Portable To Carry It To Anywhere, Comes With The Vibrant Colors. The Double Wall Insulation Keep The Coffee Warm And Cold To Keep You Hydrated And Healthy.