Sizes are approximate.
ATS1/1/8" thick by 1" x 1.5"
ATS2/1/8" thick by 2" x 1.5"
ATS3/1/8" thick by 2.5" x 2"    
ATS4/1/8" thick by 3" x 3"
ATS5/1/8" thick by 3.5" x 3.5"    
ATS6/1/8" thick by 4" x 4"
ATS7/1/8" thick by 5.5" x 5.5"