videos in AudioSet
A list of about a million ten-second YouTube clips, each labelled with the sounds in it, that Google published in 2017. Labs use it to train and test general audio and music models.
Including Rocky 10" Paratrooper Side Zipper Waterproof Boot at Galls - SP720, Safariland 6360 Holsters at Galls, Rocky 8" Alpha Force Zipper Boot at Galls - SP529