Using this Gator hardshell case is easy. Just open the case, gently place your 16 - 16.5 - inch viola inside the well - sized interior. Make sure it fits snugly to avoid any movement during transport. When carrying the case, hold it by the handle firmly. For maintenance, keep the case in a dry place to prevent the ABS material from getting damaged by moisture. You can wipe it clean with a soft, dry cloth if it gets dirty. Avoid dropping or subjecting the case to heavy impacts as this could damage the structure and potentially harm your viola. If you notice any cracks or damage, it's best to get it checked or replaced to ensure continuous protection for your instrument.