... BPA-free, Eco-friendly 4. 350ml,500ml,750ml,1000ml available 5. Double Wall Newest 500ml Stainless Steel Thermos Vacuum Flask Product function ... Novel design, elegant workmanship and complete in specifications2) Leak-proof, rustproof and unbreakable3) We adopt durable, high quality 18/8, 304 ... , plastic mugs, sealed canisters, shakers, gift sets, etc. Newest 500ml Stainless Steel Thermos Vacuum Flask