Crossing is a Chinese vaporizer hardware brand specializing in portable electric rigs, concentrate vaporizers, dry herb vaporizers, ball vape systems, atomizers, and related accessories. Under the SZCrossing brand, the company offers products such as the Crossing Core E-Rig series, Ruby Twist ball vaporizers, WOHW desktop vaporizer systems, and TUG concentrate vaporizers. The brand focuses on functional vaporization hardware, combining customizable designs with accessible pricing for dry-herb and concentrate vaporizer users.