NexGen PK 16" x 5" Microfiber Frame, 10/cs. PK (Pocket-Style) Microfiber Mop Pad. Constructed of durable, uniquely designed fibers that can stand up to tough jobs and repeated laundering. Excellent for healthcare and educational facilities. Giving you the ability to clean quickly and correctly, while still offering you quality control and peace of mind. Part of the Triple S Healthcare Solutions program.