Description: USB Keyboard Vacuum Dust Cleaner for Laptop Computer Directly insert USB interface ，not to need other supply Effectively suck the dust in the keyboard Have a USB light to concentrate on sucking the dust Designed with a adjustable button to suck heavier dust Specification: Model:BIG Composition:PVC Size:101X34X40mm Color: Green Weight: 63g Package Include: 1X USB Dust Cleaner