Universal format fits in standard credit card imprinters. Carbonless: no carbon tissues with credit card imprints to worry about. Ruled. Triplicate sets. • Universal format fits in standard credit card imprinters. • Perforated to tear off merchant's copy and carbonless copies. Universal format fits in standard credit card imprinters. Carbonless: no carbon tissues with credit card imprints to worry about. Ruled. Triplicate sets. Perforated for easy separation. Form Type Details: Invoice/Receipt; Dated: No; Forms Per Page: 1; Form Size: 7.78 x 3.25.