'Handy' is an open source tool designed to slow the spread of COVID-19

Matteo Zallio
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Created by a visiting postdoctoral scholar at Stanford University, Matteo Zallio, ‘handy’ is a multipurpose tool that provides a physical barrier between our hands and surfaces.

Designed in response to the COVID-19 pandemic, the opensource device aims to help people avoid touching contaminated surfaces in order to prevent further spread of the virus.

Zallio, a user experience researcher with a background in architecture and design, noticed how difficult it is to open doors, press buttons and interact with objects in the public space since the spread of COVID-19. The idea behind ‘handy’ is to therefore offer an open source response to combating the virus, which is reportedly known to last on some surfaces for days.

The open source, 3D-printed, and personal device can be used every day to pull or push a door handle, to open the car door, to push a button and to easily grab grocery bags. The aim of the multipurpose tool is to avoid direct contact with handles, buttons, bags and other daily objects outside of our homes, helping to increase hygiene and to lower the chances of becoming infected.

Handy can be 3D printed at home, printed via online 3D printing services, or for those who are creative, made by cutting and gluing layers of cardboard together. This might be a fun activity to do with kids and you can find the file and instructions for DIY manufacturing here https://www.matteozallio.com/handy. Handy is customizable, easy to carry, personal, ergonomic (with a design that fits fingers of any size, and limits hand torsion), can be used by right or left-handed individuals and is easy to sanitize.

Project info:

Project name: Handy – multipurpose tool against COVID-19

Design: Matteo Zallio

'Handy' is an open source tool designed to slow the spread of COVID-19

Handy can help you open the pull handle of your car


The tool can help you press ATM buttons


The tool fits all types of push handles


Handy - The open source tool to slow the spread of COVID-19