These 3/16” diameter F1 wool‑felt grease wicks are precision‑sized replacements for the internal lubrication ports of Singer 201‑2 and select 221 Featherweight sewing machines with potted motors. Each wick is manufactured from dense, oil‑resistant felt cord and supplied 1” long; you simply trim them to the correct length (typically about 3/4”) to match the depth of your motor's grease ports. Over time, the original wicks can harden and stop wicking grease properly, leading to increased noise and friction; replacing them with fresh felt wicks restores smooth, quiet operation and helps protect the motor shaft and bushings. This listing is for a pair of wicks, so you can service both sides of the potted motor in one go. Installation is straightforward for vintage‑machine owners: after removing the old, hardened wicks, lightly pack the port with high‑quality sewing‑machine grease, insert the new felt wick, and trim it flush or slightly above the motor housing. These wicks are ideal for mechanics, restorers, and home sewers who want to keep their Singer 201‑2 and compatible 221 machines running smoothly for years to come.