4 x 4 Wave Inside Cn. 440-WAVE-IC (3 5/8 x 3 5/8)    4 x 8 Wave Border 480-WAVE-BO (3 5/8 x 7 5/8) 4 x 4 Wave Outside Cn. 440-WAVE-OC (3 5/8 x 3 5/8)