real brass tubing insert-plastic tubing insert ~so compression fitting does not snap off the tubing tip  !!! -.Stock up while we got em"......WE ARE THE ORIGINAL PURCHASER OF THE ITEM...we have not rebuilt or cleaned or painted the item comes as shown,item comes from our working stockroom,please check photo's for additional description ,condition,color........all questions answered, may have dust,dings ,scratches,paint,rust and or stains item New. GET IT FAST we accept no returns or refunds ....auction is for one item....enjoy our low low prices while we restructure our warehouse!!!