Features：
Color: Random color.
Material: PE.
Size: About 5.5x5.5x7cm/2.16x2.16x2.75 inch.

Put this product on the bottle and tighten it.
Squeeze the sphere to inflate the bottle.
Press the open button above and pour into the cup.
Suits for carbonated drinks such as cola, soda.
Note: this product should not be used on glass bottles.

Package includes:
1 x bottle cap

Note:
1.Due to the different monitor and light effect, the actual color of the item might be slightly different from the color which is showed on the pictures.
2.Please forgive 1 cm/0.39"-3 cm/1.18" measuring deviation due to manual measurement.