Hi, , I am looking for 200pcs counter mat (your option 1 "changeable counter mat") and can insert a 11 x 17" sign. all in black color, no need any logo. I want to double confirm if the standard size is 11"x17" or 14"x19 which can insert a 11x17" sign into. myis and my i. Tks. BR Aking Peng