Found Keys near Blacklidge, between Edith and Sparkman blvd, Tucson, United States

Found a large metal ring holding approximately 10 keys, including silver and brass-colored keys. The set features a blue plastic key cover, a cylindrical brass attachment, and a small silver cylindrical tool. The 'Dexter' brand name is visible on one key. Found at Blacklidge, between Edith and Sparkman blvd.