Detailed Product Description

Features: 
1) Chemical analysis filter paper: Made of extremely pure cotton linters, Containing
    nearly 100% alpha grade cellulose
2) pH indicator and test paper:  particularly suitable for educational and industrial
    use. In schools, they are economical, as the amount of paper per student can be 
    carefully controlled
3) Lens cleaning tissue: the tissue is chemically pure and free from silicones and 
    other additives. Most importantly, it can be relied on to safely remove surface
    moisture and grease