Protective Lids Are The Perfect Addition To Your Beverage Center Or Breakroom. They Fit Genuine Joe Hot Cups And Ripple Hot Cups That Hold 10 Oz., 12 Oz., 16 Oz. And 20 Oz. Of Hot Beverages. Use Slot Hole For Easy Sipping. Lids Are Made Of Polystyrene. Cups Are Sold Separately.