... ,SGS approved 4,leak proof!!! our food box:hot selling stainless steel vacuum food box :basic details: *capacity:350ml;500ml *packing: ... the office, at the beach, we needed the strongest, lightest stainless steel containers we could get. So did all our friends. Now we ... Friendly,FDA test , SGS , 100% BPA free,LEAD free;· Unbreakable stainless steel material & 100%leak-proof ;· No leak & easy open twist ...