Using these O - ring gag and nipple clamps is easy. First, adjust the leather straps of the gag to fit your partner's head comfortably. Place the O - ring in their mouth and tighten the straps so the mouth stays open. For the nipple clamps, gently place them on the nipples and adjust the tension to your preference. Remember, communication with your partner is key. Always check in to make sure they're comfortable. When it comes to maintenance, wipe the leather parts with a soft, dry cloth regularly. Keep the metal parts dry to prevent rust. Store the gag and clamps in a cool, dry place away from direct sunlight to preserve their quality.