Exercise 1
5495200
Inventory 2
1832756
Inventory 3
4084624
Headset Design Scheme
2287466
The spiral structure of the paper roll design makes it more convenient for girls to pull out.
533142
Headset Scheme 2
1273933
Old Headset Design Scheme
2463491
1883225
2031949
1283649
1632886
