Most Dragon kits have individual track links. As said before, most Tamiya kits have the 'rubber band' type one piece tracks. AFV Club 251s have one piece tracks as well. You can visit
http://www.1999.co.jp/asp/main_e.asp?Bno=&Typ1_c=102
There you can look inside the boxes and read the instruction sheets to see what you're getting.