Constant Temperature Feeding Bottle BabyProduct Information Caliber Specifications: Wide Caliber Shape: straight Whether to bring a handle: with a handle Material: Glass A: 3rd generation constant temperature fast filling milk bottle (glass) yellow B: 3rd generation constant temperature filling bottle (PPSU) yellow C: 3rd generation glass feeding bottle (without handle) D: 3rd generation PPSU feeding bottle (without handle) E: 3rd generation glass bottle (without handle) + powder box F: 3rd