The only 304 grade 18/8 Chromium-Nickel alloy steel flask with the inner and outer body crafted with same steel! The food-grade, a milk-friendly flask is resistant to denting out of falls and knocks. Bonjour offers replacement guarantee for 1 year without any premium pricing. BONJOUR’s VALENCIA Stainless steel vacuum flasks are available in 350ml, 500ml, 750ml, 1000ml and 1200ml capacities.