1.for trave,outdoor sport,cycling ect.suitable for promotion gift. 2.It's high quality aluminum,BPA Free. features:1.it iss used mainly in traveing,outdoor sport,cycling ect.suitable for promotion gift.2.it's high quality aluminum,strong and durable.3.safe inner coating to keep drink,FDA food grade,no posion,no smell,BPA free.4.100% recycle material,environment friendly.5.shape is cool and ...