Green Onions Supply X-Style Universal Notebook/Laptop Keyboard Protector and Cover - 3 Pack (RT-XU01103) Universal size M: Elastic straps allow compatibility with most brands of laptops in the 13.3 (HD) to 14 inch (HD) screen size range (or 14 to 15 inch 4:3 ratio laptops) Thin plastic film is transparent, durable, and very easy to type through Protector design keeps out spills, dust, and other debris from your laptop's keyboard well, while making cleaning and sterilization far easier Semi-disposable: provides affordable protection for several months of use depending on abuse. Package includes 3 X-Style Universal Notebook & Laptop Keyboard Protectors, Size M