The blocks shown in the video can be downloaded here -
https://cad-block.com/
But you can customize any block to be dynamic block,
let me know if you want more such videos.
Watch video How to make AutoCAD Dynamic Block | Stretch & Scale Command - Part 1 online, duration hours minute second in high quality that is uploaded to the channel Archi Vlogs 15 December 2022. Share the link to the video on social media so that your subscribers and friends will also watch this video. This video clip has been viewed 4,397 times and liked it 87 visitors.