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This design aims at solving problem that the puppies or those dogs with short legs cannot climb common stairs easily because it is hard for them to climb too high stairs, which is very mentally and physically harmful to their health. With recyclable paper made as the packing box for dog food with damp-proof course inside, the box can be placed on common stairs so that the puppies can easily climb. The particular design featured with trapezoid can stop the box from sliding around and the puppies can climb conveniently. Once the puppies are old enough to climb common stairs, you can remove the packing box easily and make recyclable use of it.
Haibin/Liu Fei/Wang Shuya/Wang Kun/Zhang