Double Wall Gel Freezer Mug - Set of 4 - Red, Orange, Blue, Green Set of four double walled mugs Includes one red, orange, green and blue mug Mugs each hold up to 16 ounces of liquid Place mugs in the freezer for up to 4 hours to keep drinks extra cold Approximate dimensions are 4.75" x 3.5" x 6" Set of 4 includes a green, blue, orangeand red design Each mug holds up to 16 oz of liquid Place mugs in the freezer for up to 4 hours before removing and adding a beverage - The gel inside freezes and will keep your favorite drinks chilled Hand wash for best results - We do not recommend putting these mugs in the dishwasher, as the heat may cause the gel to seperate Crafted from BPA-free acrylic - These mugs are safe for all ages Sturdy, redesigned contruction keeps these mugs looking new everytime you use them