What Sizes Are You Looking For? 8 inches (20cm) 12x20 in (30x50cm) 12 inches (30cm) 14 inches (35cm) 16 inches (40cm) 18 inches (45cm) 20 inches (50cm) 22 inches (55cm) 24 inches (60cm) 26 inches (65cm) 28 inches (70cm) 32 inches (80cm)