Optical Tool Kit TC-406NO. Name Qty Purpose 1 Fiber Optic Cleaner 1 Cleaning the ceramic ferrule and fiber connectors 2 Alcohol bump bottle 1 Cleaning the fiber 3 40 times microscope 1 Observing the fiber connectors 4 Cleaning Cotton Swabs 1 Cleaning the fiber adapter interface and sleeve 5 Carrying case 1 Containing the above tools