The 3D files include four components: a screw cap, a funnel for an injection nozzle, a small 16 mm cap, and a wall holder.
The 16 mm cap and the funnel are designed to be glued onto a 16 mm electrical conduit. The screw cap fits securely onto the funnel, allowing excess powder to remain inside the container. The final piece is a holder, making it easy to store or hang the assembly when not in use.