Colors: white, orange, black, red, yellow, green, purple, gray, pink, light blue Product category: thermos cup Material: 304 stainless steel Is there a patent: No. Is it a gift: yes, it is a personal gift. Heat preservation performance: 6-12 hours Material: inner 304 outer 201 Applicable gift-giving relationship: couples, colleagues, classmates and teachers. Applicable scenarios: business, home, car, general, office, gift giving Applicable crowd: ladies, men, couples, general students. Material: 201 stainless steel Print LOGO: Yes. Style: large capacity Features: household, portable, vacuum, heat preservation, customizable. Applicable festivals: Christmas, Spring Festival, Father's Day, Mother's Day and National Day. Style: Modern simplicity Capacity: 380ML,510ML