Premium Quality - This 33 oz glass milk bottle is made of premium quality glass, durable enough to withstand normal wear and tear Re-Usable Plastic Cap - Our re-usable plastic cap fits securely atop the glass bottle, a safer alternative to metal caps which can rust and deteriorate over time. Hand Washable. Multi Purpose - For more than just milk, use these glass bottles to store water, juice, coffee, tea, and more. Perfect for traveling on the go, or at home. Dishwasher Safe - Each two pack of these eco friendly reusable glass bottles is dishwasher safe, a friendly alternative to single use plastic water bottles or milk jugs. 100% SATISFACTION GUARANTEE - Ilyapa stands behind all of our glassware 100%. Please reach out to us with any questions or concerns, so we can help!