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An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
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If you want to fit a wider elastic strap to a Prusa RC3 faceshield these will clip on each side and have a vertical slot for the strap that goes around the back of your head. The slot is 21mm long and so will take for example the elastic strap from a head torch, or just plain wide elastic from a roll. They secure by pressing them down from above and they are labelled (L)eft and (R)ight.
