Premium Material: This piano keyboard case is made of premium oxford fabric for long life. The inner layer of the piano keyboard case is waterproof and smooth, which protects your keyboard from scratches on your piano. Perfect fit for keyboards: This piano keyboard case fits the most keyboards with 88 keys and measures 52.75 L x 11.41 W x 7.09 H inches (134 L x 29 W x 18 H) with a nylon cord to tighten and fits most keyboards. Protecting your favorite tool: When the protective piano cover is removed, there is no material on the keyboard. Essential for protecting your digital piano or keyboard from dust and other hazards. Easy to fit: Premium adjustable elastic bands help you achieve a custom fit that doesn't move, edges to stay free, safe and easy to remove. Machine Washable: Our piano case is simply popped into the washing machine to enjoy a shiny new protective dust cover. Focus on protecting your piano from dust, water, scratches, easy and soothing cleaning. Please do not wash with other clothes. Hand wash recommended for longer life.