smok-e mountain drip tips. specificaly the ones with the delrin base. models called "Rameses" and "octalink" its a nice 2 piece driptip.
the 2 pieces seperate and you can use other drip tips on the delrin base. also the delrin is good for keeping the tip cool. another cool thing is that these tips are boared (have a big hole) so its nice to just drip the juice in your tip.