Custom Made Stamp - MaxStamp SI-5230 38x38mm Square - You can add text up to 8 lines with 20 characters on each line and a logo if required (Square Shaped!) Simply upload your logo and the text you need and we will create the artwork and email you a PDF preview to check and approve. Once you approve the artwork your stamp will be made and posted the same day if approved before 11am or the next working day (M-F)