Product: egg shaped diamond cup capacity: 350ML package: white box number: 50/ box Material: 304 stainless steel shell or paint, 304 stainless steel inner liner. Heat preservation / cold preservation: vacuum heat preservation / cold preservation for more than 6 hours (GB QB/T2332-97) Outer box size: 45*45*28cm Packing number: 50 weight per box: 14kg/ box