1. Material: silicone
2. Put this product on the bottle and tighten it, squeeze the ball on the top to inflate the bottle
3. Press the open button on the top to pour into the cup
4. Suitable for most bottles
5. Compact size, does not take up space, durable
6. Color: Black, Orange, Pink
7. Size: 7 x 4cm
Note: this product can not be used on glass bottles