Features: Precise design: Accurately fitting the headphone headband, perfectly adapting, and maintaining original appearance and functionality after installation. Breathable and sweat wicking material: Comfortable and breathable fabric, it accelerates air circulation and can maintain freshness even after long time wear, avoiding stuffiness and discomfort. Detachable and easy to clean: Supports water washing and quick drying design, easy removal of stain, solves the problem of traditional head beam cover hiding dirt and grime, and is more hygienic and safe. Buffer decompression protections: disperses head pressure, reduces the pressure on the headband, and enhances comfort. Smooth opening and closing: Using zippered closure, without shaking, accidental opening, and abnormal noise, making smooth opening and closing more comfortable. Specifications: Material: cloth Color: black, gray(optional) Unfold Size: approx. 26x10cm/10.24x3.94inch Applicable model: Suitable for HD490 Professional Headphone Package Includes: 1 Piece Headbeam Sleeve note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.