The cup is made of food-grade PP material, which is healthy and environmentally friendly, resistant to high temperatures, and will not release harmful substances to humans when exposed to heat. 304 austenitic stainless steel inner liner is strong and durable, will not rust, the quality is rock solid. Imported dot spraying process outer layer, uniform electric spraying process spray paint, smooth and delicate, reflective, more stylish, and generous appearance. The polishing and sanding process is used to frost the body of the cup, making it textured and frictional and reducing fingerprint residue. Double vacuum insulation to keep cool, 304 stainless steel double vacuum design, long-lasting insulation to keep cold, heat insulation, and anti-scalding. Four colors are available and customized logos are welcome. Measuring 7.68*3.27 inches, this custom 17oz shaped double layer stainless steel vacuum insulated mug. Usage Scenarios: Office supplies, school stationery, corporate promotions, trade show giveaways. We offer logo printing and full packaging customization. Product Highlights: BPA-free, leak-proof, travel-friendly.