Packing up for Fido is a lot more convenient with the Pet King Portable Pet Bowl set, two sturdy plastic dog bowls joined by a hinge, with snap-on plastic lids. When not in use for food and water, the bowls fold back-to-back, with the plastic handles on each bowl snapping together to form a carrying handle. The lids hold solid food in, but are not watertight enough to keep liquids from leaking. The Pet King comes with a zippered nylon bag with a shoulder strap, and is available in two sizes. Standard-size bowls hold about 32 ounces each; junior-size bowls hold about 10 ounces each, and also work for cats.