1. Material: PP resin + silicone 2. Capacity: 300ml/600ml/630 ml 3. Weight: 300ml: 360g, 600ml: 400g, 630ml: 480g 4. Dimensions: 300ml: 8 x 8 x 15 cm, 600m: 8 x 8 x 21 cm, 630 ml: 9 x 9 x 21 cm 5. Features: automatic opening and closing, no dripping or hanging, saving time and effort, easy to clean, safe and healthy