The perfect starter bottle for baby. The Lifefactory 4oz borosilicate glass baby bottle comes with a silicone sleeve, polypropylene cap, ring, and stopper, and a Stage 1 (0-3 months) silicone nipple. These are wonderfully easy to clean: the bottle stays inside the silicone sleeve, and go right in the dishwasher. Buy a set of four and you'll have an extra in the fridge, ready for your daily routine. Made with high-quality materials and baby-friendly designs: you'll love these neat little bottles as much as your baby does! Features Made with high quality thermal shock-resistant borosilicate glass Protective silicone sleeve helps prevent breakage and provides an easier grip Includes Stage 1 silicone nipple, polypropylene cap, ring and stopper Bottles can be used to freeze liquids - see Care & Use Guide for proper storage instructions. BPA-free and phthalate-free. Tested to meet FDA standards. Made in USA and Europe Dishwasher safe (place cap parts and nipple on top rack/no need to remove silicone sleeve) 4 oz (120 ml)