This is a fairly simple addition to our range; it allows you to drill a bottles existing cap to fit a nozzle to it. All you need is one of these and a 10mm drill bit to drill through the center of the bottle cap, glue it in place with and adhesive of your choosing (we recommend hot glue for this as it fills any gaps nicely), refit to bottle and use ! We hope to have a lot more parts coming shortly, If you wish to be updated and are interested in what we are doing please give us a follow on twitter @TheSmartFarmCo It is always nice to see photos of our projects being used and adapted by the maker community so please post makes and reviews and share with your friends and family ! We actively encourage distribution and selling of our bottleponics items to make them readily available to people without 3D printe and will be developing some itructio, BOM's and kits in the coming weeks which will be available from our website: along with a set of guidance notes.