Made of high-quality food-grade 304 stainless steel inside and outside walls. Abrasive texture reduces paint shedding and bottle cracking. Eco-friendly, shockproof, shatterproof, rustproof, leakproof, scratch-resistant, double-walled, no sweat or condensation on your desk. Suitable for office, home, and travel use. Stainless steel inner prevents exposure to harmful chemicals at high temperatures. Rush service and Unprinting service is acceptable.Price above 300 is via Ocean freight.