Capacity: 1L; Heat retention after 6h >= 80 C; Body: Polypropylene material, customized patterns and colors; Lid: Polypropylene material, can be used as a cup; Stopper: PP Plastic material, easy to handle; Bottom: Skid resistance, easy to disassemble; Glass refill: High quality, produced with Japanese technology, excellent heat retention rate; Color and Pattern: Optional or customized; Logo: Rang Dong; OEM: Accepted;