Penguin / Warm-keeping coat of cup

Penguin is a warm-keeping coat of cup. Many

people like to hold a cup with hot water
to keep hands warm in cold season. But the

water will soon become cold. The Penguin

can keep water hot for longer time like vac-

uum cup. It`s made of plastic insulation

material. With the characteristic of having

great elasticity,it can be suitable for different

sizes of cups.