20g Prechopper is able to fit through a 1.2mm incision; Safely prechops grades 1-3 Nuclei; Designed to be used through a sideport incision, Micro Phaco Incision and Laser Phaco Incision; Tip was created to open wide for more effective chopping of the nucleus without compromising the small incision of 1.2 to 1.5mm; Opening and closing is within the anterior chamber; Reduces phaco time by 50%