Small enough to slip into your pocket and you can charge it via USB--are you we talking about the newest smartphone? Of course not! This amazing vape from Grav Labs has it all, and we 100% recommend this concentrate vape. At only 5 inches tall, it really is smaller than your cell phone, but this pen serves a whole other purpose: with caliber materials and durable construction, this vape is built to last for any and all of your concentrates and oils. One of the best features is the atomizer: instead of having glue or rubber materials, these atomizers are made of pure ceramic and quartz. These metals are completely safe to inhale along with your vapor, unlike any plastics that might produce toxins. Even the mouthpiece is made of borosilicate glass, the safest and best quality glass on the planet. This vape pen is a full set that comes with a cleaning kit, USB charger and 6 atomizers.