1) 4" x 4" x 3/8" - 10 x 10 x 1 cm 2) 8" x 8" x 3/8" - 20 x 20 x 1 cm 3) 12" x 12" x 3/8" - 30,5 x 30,5 x 1 cm 4) 16" x 16" x 1/2" – 40,6 x 40,6 x 1,2 cm