The glass can crack easily, but thin like plastic.
The LINX dab pen charged quickly and was easy to use. Also worked with cartridges.
This little thing is awesome! Very lightweight, portable and discreet. It is simple and user-friendly. Just slap happy a rice-sized dab on the coil, push the button and watch the vapor fill the chamber. Then enjoy your sesh. This is a no-frills, quality little wax pen and I highly recommend it. Comes with a travel case which is nice to keep everything together.