The Lifefactory 9 oz glass baby bottle is designed for growing babies, featuring a silicone sleeve for a secure grip and protection against breakage. Each bottle is made from high-quality thermal shock-resistant borosilicate glass, ensuring safety and durability. The set includes two bottles, each with a capacity of 9 oz, and comes with a polypropylene cap, ring, stopper, and a Stage 2 silicone nipple suitable for babies aged 3-6 months. These bottles are dishwasher safe on the top rack, making cleaning easy and convenient.