The OTTO is the first automatic smart rolling machine designed to grind and pack up to 30 cones per charge
Perfect for portable vaporization
Enjoy smooth rips with none of the harshness sometimes associated with nectar collector vapes
Begin to draw from the mouthpiece while still holding the power button
A rigid plastic exterior is crush resistant and helps shield it from the elements
G Pen Pro Vaporizer "social" The OTTO is the firstG Pen Pro The new updated G Pro Herbal Vaporizer 2017 Edition is sleeker, smarter, and stronger with a smaller build, a new color coded LED display, an all ceramic heating chamber, and an even more elegant, ergonomic design. Unlike most portable vaporizers, the G Pen Pro vape by Grenco Science features convection heating, delivering clean tasting, smooth, and flavor rich vapor free of irritants. The G Pen Pro vaporizer features three presets,