This Pre-Inked Xstamper which measures 5/8" portrays a circled "C.O.D." which stands for collect on delivery or cash on delivery. If your required method of payment is to collect the cash at the moment of delivery, then this is the stamp for your business. The impression was designed in all caps to avoid any customer confusion regarding paying for their package. They will have complete understanding after seeing this straightforward and efficient stamp!