PURPOSE: To prevent the generation of waterdrops on the surface of a container by incorporating a water drip-proof material which has an antifogging action or a water drip-proof action, a lubricant, an antioxidant and a polyolefin resin having a specific weight% or above.

CONSTITUTION: The lid 1 of the container and a main body 2 consist of the polyolefin composition incorporating at least 4 kinds consisting of a material having the antifogging action or the water drip-proof action, the lubricant, the antioxidant and the 50wt.% or more polyolefin resin. The polyolefin resin is selected from a low density-, middle density-, high density-homopolyethylene resin, ethylene.α-olefin copolymer resin, homopolypropylene resin, propylene.α- olefin copolymer resin, polybutene-1 resin and polyolefin elastomer, etc. The polyolefin resin is preferable to have a thermal history at ≥180°C, preferably at ≥190°C, especially at ≥200°C in the time of uniformly mixing various additives. The pellets having the thermal history at ≥190°C is preferable to be used, in the polyolefin resin especially incorporating an organic nuclear forming agent.