Ultimaker Robot Head That Holds Your Toilet Rolls. One Ear Has A Shaft That Holds The Toilet Roll In Place and The Other Ear Rotates To Lock The Center Shaft In Place. The Slit For The Toilet Paper Is A little Small But The Paper Still Feeds Through Fine. It Just Makes It A Little Fiddly To Feed The Paper Through. Was Made To Fit The Large Diameter NZ Toilet Rolls So It Should Fit All Sizes