... 3,no rust welding 4,fashional style our hip flask:food grade stainless steel hip flask:basic details: *capacity:8oz *packing:100pcs ... , SGS , 100% BPA free,LEAD free;· Unbreakable stainless steel material & 100%leak-proof ;· No leak & easy open ... was made of high quality food grade stainless steel and no joint less structure.· Anti-corrosion Special ... contact with us! food grade stainless steel hip flask