Triangle Bottle:1L Product Features: 1, Zinten Triangle Bottle Color is made of high quality glass material, the glass is smooth and transparent, no air bubbles, and the wall thickness is uniform. 2、Using extra hard and high quality glass material, it has good pressure resistance and can be sterilized by 121℃ hot pressure sterilization. 3、This product has fast flow, standard grinding mouth and good sealing performance.