NEW Durock Lupine linear switches. These linear switches from Durock feature a long pole stem and a 62g 2 stage long spring. The switches are made with a polycarbonate top, a nylon base, and a POM stem. The stem has a longer pole for a thockier bottom out sound. They feature a specially designed top housing and stem with the aim to minimize housing and stem wobble. Factory lubed. 10 switches per unit. Please note a box style switch opener is need to open a normal MX style will not work.