Fiber optic polishing pads are essential tools in the termination and maintenance of fiber optic connectors. This work mat also features the following: Made from a dual-sided black vinyl. Spec Sheet 50 Discs per package Each disc measures 4". Thorlabs offers a family of products to assist customers who would like to terminate their bare fiber, including fiber polishing film for use with ceramic or stainless steel ferrules, polishing pucks, polishing plates, and termination kits. They are ideal for polishing fiber optic connectors in various grit and particle. Fiber Polishing Pads are essential consumables used in the fiber optic connector polishing process to ensure optimal end-face geometry and low signal loss.