Sizes:
Outer diameter: 3MM, inner diameter: 1.8MM
Outer diameter: 2.5MM, inner diameter: 1.5MM
Density arrangement:
Mesh number tuning papers: 200＜250＜300＜350＜400＜450＜500
Package includes:20pcs tuning papers
Top: mesh number tuning papers
Bottom: Y series tuning papers