Lily's Home Double Wall Gel Freezer Mug - Set of 4 - Red, Orange, Blue, Green. 16 oz each Keep your drink cold and refreshing with this set of 4 double walled mugs Includes one red, orange, green and blue mug and filled with freezable "crackle ice"gel Mugs hold up to 16 ounces of liquid and made of a PBA Free acrylic material Place mugs in the freezer for up to 4 hours to keep drinks extra cold Mugs measure approximate 4.75" x 3.5" x 6". Hand wash