"Tennis ball fuzz is made from plastic like PET (polyethylene terephthalate), which gets worn away and becomes microfibers that turn into dust we breathe in."*
RecycleBalls grinds the rubber, which is then used as a construction material for tennis courts, playground turf, stucco, and equestrian turf and keeps tennis balls out of landfills.
*https://www.sierraclub.org/sierra/ask-ms-green/how-do-i-recycle-used-tennis-balls?utm_source=insider&utm_medium=email&utm_campaign=newsletter
Photo by Old Photo Profile, Flickr