Set included: 

х1 3D Printed Karcher 18V Tool Adapter Makita LXT 18V Batteries.

Adapter Only, no Batteries or Tools included. 

Adapter will permite you to use Karcher 18V Tools with Makita LXT 18V Batteries. 

There are no buttons on the outside because the latch mechanism is hidden inside. 

WARNING! Do not use adapter for charging battery, it's not provided for this. 

The DIY tools and types of batteries I work with, can make an adapter for any of them:

Dewalt, Bosch (Home and Professional), Black & Decker, Ryobi, Einhell, Makita, Hitachi, Metabo, Milwaukee, Gesipa and others.

 If you didn't find your type of battery in the list, just text me, I can make an adapter for almost all types of batteries and DIY Tools.

You also can choose the color of adapter: White, gray, green, red, blue, black and others, on your choice. 

Video example of how does an adapter works (it may be another battery or tool just for example): 

All illustrations are based on data available at the time of publication and are for guidance only and are subject to change without notice.