These pods are fitted for the Drag S and X Pod Mod Kits, and are reported to be compatible with the V.Suit Pod Mod Kit also. 

If you're needing the 510 base, you can buy the PnP Pod Tank instead over here.

Specs:

• Capacity: 4.5ml

What's in the box:

• 2 x Voopoo PnP Tank Replacement Pods