Using this Gator viola case is easy. Just open the case and gently place your 15 - 15.5-inch viola inside. Make sure it fits snugly in the interior space. When carrying it, hold the case by the handle carefully. For storage, keep it in a dry and cool place to prevent any damage to the ABS material. Regularly check the case for any signs of wear or damage. If you notice any cracks or loose parts, it's best to get it repaired or replaced as soon as possible. Also, clean the interior of the case with a soft, dry cloth to keep your viola clean and free from dust.