Leak Free: Syntic improved screw lid with removable silicone gaskets make it 100% leak-proof and keeps your drink fresh, letting your bag and belongings stay dry all day long; Juicing bottles reusable glass great for carry-out to travel, beach, gym, school, work, camping, hiking | Clear Marker: The capacity marker helps you track daily water or hydration intake, whether at home, as gym water bottle or as a travel bottle with kids and friends, these encouraging measurement markings are specific and easily achievable | Multipurpose Juice Containers: The 16 oz glass drinking bottles with lids are suitable for homemade juicing and various beverages, water, milk, breast milk, juice, coffee, soda, fruit tea, and also great for storing oil, honey, vanilla extract, nuts and more | Perfect Size: Each juice jar features: 2.65" W x 6.96" H. Its square shape is designed to provide a comfortable and easy grip and save space, fit most car cup holders and fridge doors. Wide mouth(1.3 inches) allows filling up, adding ice, and cleaning easy | High-Grade Set: 6 pack 16 oz empty glass bottles with lids are made of food-grade materials, BPA free, lead-free and dishwasher safe; 2 silicone pour spouts; 2 extra airtight lids with silicone gaskets, 1 pen and 6 waterproof stickers, easy to tear off without leaving any glue