The threaded construction of Small Factory Ring requires you to hold the Head when screwing it onto the Base Ring during exchange. Therefore, please make sure your fingers are clean before exchanging or tightening the Heads. You may also use rubber gloves for a better grip.

Black and Rainbow items are coloured through ion plating on messing. For these plated items, please avoid using polishing cloths or scratching them against hard surfaces. This also applies to Heads with pearls or gemstones. Instead, use a soft, dry, non-abrasive cloth to gently remove any moisture or oils.