Philips Avent SCF599/91 Glass Baby Bottle with Wide Caliber Material: polypropylene, high borosilicate glass, food grade silicone Applicable age: 0-1 months Bottle caliber: wide caliber Bottle shape: straight and roundPackaging list: 1 bottle, 1 bottle nipple, 1 bottle cap Features: 1. Full food grade silicone bottle nipple without bisphenol A (BPA) and can withstand high temperatures of 110 ℃, 2. PP material bottle cap, wear-resistant, corrosion-resistant, and high-temperature resistant to 110 ℃, 3. High borosilicate glass bottle, BPA free and can withstand high temperatures of 600 ℃ 4. Air Flex system for more comfortable breastfeeding, reducing baby bloating and discomfort