3 ms·Mark Rober video of Zipline: https://youtu.be/DOWDNBu9DkU https://youtu.be/DOWDNBu9DkUby TheAceOfHearts 3y agoMark Rober video of Zipline: https://youtu.be/DOWDNBu9DkU https://youtu.be/DOWDNBu9DkU