CD features: 2.5" Shockproof Hard Drive Disk HDD Silicone Case Cover Protector For Backup Plus External Hard Drive Color: we send based on the color or size of the main image of the product page. Quantity：we send based on quantity on title, if there is no quantity in the title, we send based on description. Origin : CN(Origin) Material : high quality silicone Color: Options Shown Specifications: 115¡Á83¡Á15mm/inner size (extreme stretch size: 125¡Á83¡Á16/mm) Material: high quality silicone Specifications: Made of high-quality silicone, durable, good elasticity, high degree of stretching, stylish design, edge angle, can be very good buffer hard disk four corners accidentally dropped when the collision In the smooth floor, office, bedroom, study, are not afraid of the hard drive accidentally fell to the floor, because this X-type [seat type] silicone sleeve, you can very well protect the diagonal of the hard disk, while thickening a little Silicone sleeve is elastic and effective to avoid direct impact damage Elastic silicone, stretchable, WD Western Digital, Toshiba series can also be used