COOLM Adapter 7.4mmx5.0mm to 4.5mmx3.0mm Tip Connector Converter for Hp Dell Laptop Blue Tips (2 Pack)

what I have here today is a AC on adapter laptop power adapter tips its come with 38 pieces as you can see here you for clicks so the one and all the way in the right is the or larger for Dell HP and something else but I only really currently have three laptops I have a Asus bio book s5 and I have a Dell 13 7000 and I have Lenovo 13 so I'm using this universal charger and in the back you will see is a standardized input with the pin in the middle the kit does come with an instruction book ancillary interpreter I would call it a manual a single sheet from him back the front is in English and the back is actually in Japanese it tells you what are their external diameter and the internal diameter for the power chargers which is have we all know you need that to figure out which laptop or you can just plug everything in see math as you can see it tells you what it's for so don't lose the sh