Perfect for sudden rain! Just cover your instrument case with this! You can carry the case on your back with the rain cover still attached. The cover has a waterproof zipper on the side, and the handle can be removed. When not in use, it can be folded into a pouch shape for compact portability. This rain cover is ideal for rectangular tenor saxophone cases measuring approximately 830 x 200 x 340 mm, and can be tightened using the drawstring on the back. Depending on the case, there may be some extra space, but it can also be used for soprano saxophones and trumpets. *Minimum dimensions: approximately 530 x 150 x 200 mm While the rain cover is made of water-repellent fabric, it is not completely waterproof. Therefore, in heavy rain or situations where the item will be exposed to water for extended periods, we recommend using it in conjunction with a waterproofing spray.