13：
Upper outer diameter: 13cm, inner diameter: 11cm The diameter of the lower mouth is 9cm, high: 5cm Thickness: 0.31mm, capacity: 400ml
17.5 ：
External diameter: 17.5cm, inner diameter: 15.5cm, bottom diameter: 12cm, high: 5.8cm. thickness: 0.31mm. Capacity: 860ml
21 ：
The outer diameter of the mouth is 21cm, the inner diameter of the mouth is 18.5cm, the diameter of the lower mouth is 16cm, and the height is: 7cm. thickness: 0.31mm Capacity: 1560ml
23.5 ：
The inner diameter of the mouth is 23.5cm, the outer diameter of the mouth is 21.5cm, the diameter of the lower mouth is 17cm, and the height is: 8cm. thickness: 0.31mm Capacity: 2020ml
28 ：
The outer diameter of the mouth is 28cm, the inner diameter of the mouth is 26cm: the diameter of the lower port is 20.5cm, and the height is 9.5cm Thickness: 0.31mm, capacity: 3600ml
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4-Way Stretch
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