Add this glass to the Baby RBA to use the Baby RBA with the Big Baby tank
Capacity: 5ml. Will not work with standard coils, only the RBA
SMOK TFV8 Big Baby Pyrex Glass Tube is for TFV8 Big Baby tank with V8 Baby RBA coil only. As practical spare parts for your TFV8 tank, this glass tube package is easy to replace.