Using this replacement stylus is easy. First, carefully remove the old stylus from your SHURE 'M44G' cartridge. Then, gently insert the new 100Sounds RS - 44 - 100B stylus into the cartridge until it fits snugly. When using your record player, make sure the needle pressure is set correctly at 3.5g to avoid any damage to your records. As for maintenance, keep the stylus clean. You can use a soft brush to gently remove any dust or debris after each use. Store the stylus in a safe place when not in use to prevent it from getting damaged. If you notice any changes in the sound quality, it might be time to check the stylus for wear and tear.