This device is used to hold 5 bacteria coupons for cleaning. The wells created by mating the top and bottom pieces allow for the coupon to sit tightly within to be held in the proper orientation for cleaning. 

This is a custom designed piece for a lab group on campus. The estimated cost of a custom made part could be upwards of $50 and this part can be printed for roughly $0.25, depending on filament. They can also be easily disposed and reprinted so there is no need for sterilization which can have high labor and equipment costs, as well as the need for time to do so.

Both components were made using FreeCAD. FreeCAD files can be found under the download button.