"I Heart Day Drinking" Vinyl Coated Speed Flat Bottle Opener - By 30 Watt "I Heart Day Drinking" Lets face it, most bottle openers are bulky and unyielding, often constructed of dangerous (sometimes flammable) materials. 30 Watts flat openers are made of non-toxic metal (go ahead, lick one) and fit most hands perfectly. NOTE: Check out the gallery images and discover other great uses for our flat openers.