Is your tank is not sealing or staying closed? Here is the replacement top to fix that.
This will only fit the full size SMOK TFV8 Big Baby (not the baby or other versions)

Check out the TFV8 Baby Replacement Coils available here.
For replacement glass tube, click here.

Includes:

• 1 SMOK TFV8 Big Baby Replacement Top Assembly (with Orings & Top Seal(Random Colors)

(Random colors; attempts to match colors if top and bottom are ordered)