Compatible: This bottle cover is only compatible with Dr. Brown's glass baby bottles, 4 oz/120 mL. the package includes 3 pack silicone bottle sleeves. Food-Grade Silicone：Silicone baby bottle sleeves are made of food grade silicone, BPA free, Dishwasher safe, soft and safe, which is safe for baby girls to use. Anti-stick silicone material don't stick to the dust, hair, and etc, helpful for infant hygiene. Excellent Protection: All-around silicone wrapping design is against bumps and scratches. Even if accidentally dropped, it can protect the bottles from being scratched or even broken. And also make it easier to grip and hold. Thermal Insulation: The silicone baby bottle sleeves with handle for Dr. Brown's glass bottles also help insulate the glass bottle, easy to removal from in the heater, and maintain the temperature of the milk longer than if the bottle was sleeveless. Easy to Clean: Washable, dishwasher washable, sterilizable, quick drying, easy maintenance and hygiene. Please note to clean after each use. MINMUNJIU 3 Pack Silicone Sleeves for Dr. Brown's Glass Baby Bottles, Anti Breakage Baby Bottle Holder with Handles for Baby Girls, Compatible with Dr. Brown's Glass Baby Bottle, 4oz