Pro-shot 1 3/8 inch sq patch 500 CT. 6-7Mm. We are the last family owned, traditional full line of firearms cleaning accessories left that is made in America! today we continue our family owned company, with Diana and son John and still Honor My father with his passing in 2005 by producing limited edition products that he always loved and enjoyed himself. In 2012, our 3rd generation is now working at pro-shot to continue our heritage and mission.