The Fluke Networks NFC-KIT-BOX includes cleaning cube with wipes, five cards with sealed cleaning zones, solvent pen, 2.5 mm port cleaning swabs, and instruction sheet. Because the #1 cause of fiber optic cabling failures is due to contaminated end-faces, it is imperative that all optical fiber connections are clean and free of contaminants. Fluke Networks Fiber Inspection & Cleaning Tools are the solution. Whatever your particular needs are, Fluke Networks provides you with the solution to ensure your fiber connections dont bring your network down.