Using the Gator Adagio Series viola case is a piece of cake. First, open the case with the high - quality YKK zippers. Gently place your 16 - 16.5 - inch viola into the contour - molded plush - lined nest to keep it secure. You can store small accessories like rosin or extra strings in the exterior pocket. When traveling, you can choose to use the comfortable shoulder strap or the discrete backpack strap based on your preference. For maintenance, keep the case clean by wiping it with a soft, dry cloth regularly. Avoid exposing it to extreme temperatures or moisture, as this can damage the EPS polyfoam and the zippers. When not in use, store the case in a cool, dry place. Make sure to handle the case with care to prevent any physical damage to the instrument inside.