Customized button pins commonly come in circular sizes ranging from 17 mm to 100 mm, and they can be customized in various shapes according to preferences, such as square, heart-shaped, triangular, etc., to emphasize personal uniqueness and promotional purposes. Custom button pin logos by printing technology, allowing for clear representation of themes such as anime, brands, portraits, numbers, and more. Button pins are your top choice for low-cost custom promotional pins.