i never knew this... but i've played with tennis balls all the time.
posted by special_ops 1 decade 6 years 9 months 1 week ago • 1,197 viewsHow It's Made
Created: 1 decade 6 years 11 months ago
Updated: 1 decade 5 years 9 months ago
Views: 3,290
Updated: 1 decade 5 years 9 months ago
Views: 3,290
The show on the Discovery channel! And some other same style clips.