The Y tip set :------------------------------Specifications :- SS 316 base- Bore up :        DL 4mm       MTL 3.5mm- Height (bottom to top) :       DL 13mm       MTL 18mm- Material :        Teflon / color acrylic / Ebonite / PeekTip can be get by set. 1 set include DL & MTL ( extra oring )"Find your own taste"- GLUEe  🦛