Parents using Dr. Brown bottles, listen up! These silicone sleeves are absolute lifesavers for protecting your glass bottles from drops and bumps. The package includes 2 sleeves that perfectly fit Dr. Brown's 8 oz glass bottles (bottles not included, just the protective sleeves). Made from premium food-grade silicone that's BPA-free, odorless, and completely non-toxic, so you never have to worry about chemicals leaching into your baby's milk. The installation couldn't be easier - just slide the top of the bottle through the cutout and pull the sleeve down. The square cutout gives you clear visibility to check milk levels or add powder without removing the sleeve. The soft, non-slip silicone makes bottles much easier to grip - no more worrying about slippery glass surfaces when your hands are busy with a wiggly baby. These sleeves are seriously versatile too - they're dishwasher, microwave, and freezer safe, handling temperatures from -104°F to 446°F. That means you can use them through the entire feeding process without constantly removing them. They provide excellent impact protection while still being slim enough not to add bulk. If you've ever had that heart-stopping moment when a bottle slips from your hands, these sleeves will give you peace of mind and save you from broken glass and wasted milk. Definitely a must-have for any parent using glass baby bottles!