the Idea for This Tire Cup Comes From the Car Tire. the Inner Liner is Made of Stainless Steel Metal, & the Lid is Made of Food-grade Eco Friendly Plastic, Allowing You to Drink Healthy Water. Non-toxic & Tasteless, Environmental Protection & Health, Exquisite Electrolysis Technology, Non-slip, Explosion-proof & Leakproof. You Can Use It on Any Occasion, While Driving & as a Gift for Friends. You Can Use the Eco Friendly Glue Drop Process to Customize the Logo to Promote Your Business. Minimum Quantity: 100