If you've got a Pulsar Axial Hybrid Nail, you know that your nail's design uses an interchangeable donut cup made of titanium.  When it's time to change your cup, this is the one to get. It's a certified replacement part for the Pulsar Axial Hybrid Nail. 

It's best to stick with Pulsar's certified replacement cup. Why?  Because the attachments of your enail can significantly change your smoking experience, and sometimes for the worst. 

This donut cup is 25mm in diameter.  The titanium material has mind-blowing strength, heats up fast, and is incredibly durable.  Plus, it retains heat for a long time. This means you can get as many dabs as you like from each session.