Press all the buttons, open all the doors. The Sigma Touch Tool is a timely instrument for interacting with high-touch surfaces. The fluid brass form is an alluring merger of utility and style—an added layer of protection and a striking artifact of a strange time. Mitigate the inadvertent spreading of germs with this simple tactile instrument. Named for its resemblance to the Greek letter Sigma (∑), the Sigma Touch Tool is machined from solid brass. It features an eyelet for attaching to a keyring, a hooked surface for pulling doors, and a subtle protrusion for use as a stylus and button-pusher.