Bright/Vibrant Blue Frozen (Freezer) Mini Mug With Lid & Straw Set of 4 Set of 4 bright blue freezable children's beverage mugs with fitted caps & straws Each mug holds approximately 7 oz Double-walled plastic mugs contain water that freezes solid to keep beverages cold longer without diluting them Mugs stand approximately 5" tall, 3" wide at base & 2.75" wide at fitted cap