... 3042.Double walls stainless steel and high vacuum make it insulated from outside,can keep ... put ice cake.4.The design of lightweight,unbreakable,streamlined is suitable for any rucksack,bag and ... design.9.Certificates:FDA,LFGB,SGS.detailsbasic data of vacuum tumbler CapacityItem No.Qty(pcs/ctn)Meas( ... we have products mainly such as:universal use vacuum heat preservation cup ,tour kettle,large mouth ...