Description: Crafted from premium 304 stainless steel (food-grade, BPA-free), this 500ml/17oz tumbler ensures safe, flavor-free sipping—no rust, no toxic leaks, just pure drink enjoyment. Its double-wall vacuum design locks in temperatures, keeping hot drinks warm for hours and cold beverages icy cold all day long. Key Features: -500ml/17oz capacity: ideal for all-day hydration -304 stainless steel: food-grade, BPA-free, and rust-resistant -Double-wall vacuum insulation: retains hot/cold temperatures -Spill-resistant lid: mess-free carrying on the go -Fits most car cupholders: travel-friendly design -Backpack-compatible: easy to carry for adventures -Durable construction: built for daily use and active lifestyles Product Parameters: Capacity:500ml Size(W*H): 8.5x17 cm Package: white individual box or custom Meas: 56x45x20CM Qty: 30pcs/ctn G.W.: 9.50 kgs