The Idea is to have an Autofill in a small package , the design is that the red area is a small bottle that feeds the cart
thru a hole in the side of the cart , pressing the bottle will feed the cart stuffing .
It is sealed but it might feed the stuffing at the wrong angle ?? unknown , I'm sure a small valve could be fitted in the hole to prevent this ,
As far as to the LAST drop there would always be residule liquid in the bottle ( how much is unknown ? ) but @ 1.6ml thats maybe a 1/2 day supply and you could carry a spare for all day ( this would vary depending on the vaper !)
As far as cost it would not be real cheap , the cost to make the molds for a product like this is HIGH ! , and the sales would be low so !
Anyho just looking for feedback about something like this THANKS !!!!!!!!!!!!


BTW this is a refillable design !