Tile, Ceiling, Cortega Series, Mineral Fiber, White, Square Lay-In Edge, 0.55 Sound Absorption(NRC), 33 Sound Blocking(CAC), 82% Light Reflectance, Temp Range 32 to 120F, 15/16 in Grid, 24 LG x 24 WD x 5/8 TK in, ASTM E1264