4 ft x 1 11/16 in Armstrong Suprafine XL 9/16 in Exposed Tee Cross Tee / White - XL7540
2 ft x 1 11/16 in Armstrong Suprafine XL 9/16 in Exposed Tee Cross Tee / White - XL7520
12 ft x 1 11/16 in Armstrong Suprafine XL 9/16 in Exposed Tee Main Beam / White - 7500