Specifications:

[Buy four get one free] a total of 5

[Buy eight get two free] a total of 10

Color:

Blue with a thickness of 2CM (130 pieces of paper can be stored)

Thickness 3.5CM Blue (can hold 320 pieces of paper)

Thickness 5.5CM Blue (520 pieces of paper can be installed)

Thickness 7.5CM Blue (can hold 650 pieces of paper)

Thickness 3.5CM Black (can hold 320 pieces of paper)

Thickness 5.5CM Black (can hold 520 pieces of paper)

Thickness 7.5CM Black (can hold 650 pieces of paper)

Black with a thickness of 2CM (130 pieces of paper can be stored)

Thickness 2CM transparent (can store 130 pieces of paper)

Thickness 3.5CM transparent (can hold 320 pieces of paper)

Thickness 5.5CM transparent (520 pieces of paper can be installed)

3.5CM blue thickening (85c Quality Assurance)

5.5CM blue thickening (85c Quality Assurance)

7.5CM blue thickening (85c Quality Assurance)

Thickness 7.5CM transparent (can hold 650 pieces of paper)

2CM blue thickening (85c Quality Assurance)

Thickness 10CM sky blue extra thick (34cm * 24

Thickness 2CM color (can store 130 pieces of paper)

Thickness 3.5CM color (can hold 320 pieces of paper)

Thickness 5.5CM color (can hold 520 pieces of paper

Thickness 7.5CM color (can hold 650 pieces of paper)

Thickness 1.2CM dark blue (65 pieces of paper can be stored)

Thickness 1.2CM Black (can store 65 pieces of paper