Crazy Genie Mini Vacuum Air Extracting USB Case Cooling Cooler Fan support various size 15in to 17in Notebook Laptop This laptop cooling fan allows faster extraction of the hot air out of a running system, which stabilizes the operation of the notebook and prolongs its lifetime 4 different sizes of silicon sleeve included for fastening to air outlet, compatible for all major notebook brands. Compact,game style , innovative,anti skip design,Let you enjoy your laptop/notebook without worry overheat Fast and quick temperature subside,Reduce 10c just 10 second,Support various Size 15in to 17 inch Laptop/Notebook Great laptop cooling fan for overheat laptop when playing game,Support various Size 15in to 17 inch Laptop/Notebook