Business cards are portable, pocket-sized documents carrying the name and contact details of an individual. These are exchanged for business and social purposes, as part of introduction and a way for the newly associated parties to keep in touch.
Save yourself the trouble of having a business card made by designing your own. That way, you get to bring your dream look to life, and make the best first impression to new contacts and potential customers.
Though there is no universal size standard, many countries have developed their respective dimension preferences. Aside from applying your personal preferences, check the measurement of business cards in the country where you are from or are working in.