Material: Violin Cover is made of waterproof material to ensure your backpack and belongings stay dry even in heavy rainFunction: Violin Cover is effectively dustproof and waterproof designed to protect your instrument from dust and other potential damageFeatures: Dust Cover elastic band design makes it easy to carry, store, use, organize, and cleanApplicable: Violin Storage Case is suitable for home, travel, performances, etcFit: String instrument dust cover fits violinsSize Chart:Triangle: 80cmx15cmx26cm/31.50inchx5.91inchx10.24inchRectangle: 80cmx15cmx27cm/31.50inchx5.91inchx10.63inchPackage Includes:1 Violin Case Rain CoverNote:Please allow slightly errors 1-2cm differences due to manual measurement.