Product Catalog Model 175, 1-3/4" Round Button Machine > Model MTD 175, 1-3/4" Round Mounted Manual System > Model 1727, 1-3/4" x 2-3/4" Rectangle Button Machine > Model MTD 1727, 1-3/4" x 2-3/4" Rectangle Mounted Manual System > 1-3/4" Round Split Key Ring Complete Set > 1-3/4" Round Snake Key Chain Complete Set > 1-3/4" Round Chain Key Chain Complete Set >