This item is a set of laboratory papers for doing experiments. Made of premium material, easy to operate in your laboratory and more reliable than ordinary ones. Designed for scientific experiments, it can be used for water absorption, cleaning, and dust removal. Suitable for laboratories, classrooms, research institutes, etc. Features -Color: White -Material: Cotton -Size: About 7.50X2.80cm/2.95X1.10inches -Value set: Contains multiple filter paper strips, enough for experimental use. -Superior quality: Made of cotton material with good water absorption. -Fine workmanship: Each filter paper has a flat surface, is lightweight, and easy to use. -Multiple purposes: Designed for scientific experiments, it can be used for water absorption, cleaning, and dust removal. -Various scenarios: Suitable for laboratories, classrooms, research institutes, etc. Packing list: 500 x Chromatography Paper Strips