Arizer Air Glass Stem with Plastic Tip
The original Arizer Air Plastic Tipped Glass Aroma Tubes come in two sizes: 60mm and 70mm.
Arizer Air glass mouthpieces are interchangeable between the Arizer Air and the Arizer Solo.
Usability wise there is virtually no difference. Despite some claims the 1 cm length difference is all about the feel of the unit while vaping and not so much about vapor intensity, warmth or anything else. Depending on how sensitive your lips are you may feel a bit of a temperature difference but nothing dramatic.